Home / 1,230,889,986.40-1,846,334,979.60-369,246,978.40

Finding the Fourth Proportional to 1,230,889,986.40, 1,846,334,979.60 and 369,246,978.40

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Solution

The fourth proportional to 1,230,889,986.40, 1,846,334,979.60 and 369,246,978.40 is: 553,870,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,889,986.40 : 1,846,334,979.60 = 369,246,978.40 : x
  2. Step 2: Convert to fraction form
    1,230,889,986.40/1,846,334,979.60 = 369,246,978.40/x
  3. Step 3: Cross multiply
    1,230,889,986.40x = 1,846,334,979.60 × 369,246,978.40
  4. Step 4: Simplify right side
    1,230,889,986.40x = 681,753,612,331,525,504
  5. Step 5: Solve for x
    x = 681,753,612,331,525,504/1,230,889,986.40
  6. Step 6: Final answer
    x = 553,870,467.60

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Half scale
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Double scale
Find fourth proportional to 1,230,889,987.40, 1,846,334,981.10 and 369,246,979.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.