Home / 1,230,889,987.40-1,846,334,981.10-369,246,979.40

Finding the Fourth Proportional to 1,230,889,987.40, 1,846,334,981.10 and 369,246,979.40

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Solution

The fourth proportional to 1,230,889,987.40, 1,846,334,981.10 and 369,246,979.40 is: 553,870,469.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,889,987.40 : 1,846,334,981.10 = 369,246,979.40 : x
  2. Step 2: Convert to fraction form
    1,230,889,987.40/1,846,334,981.10 = 369,246,979.40/x
  3. Step 3: Cross multiply
    1,230,889,987.40x = 1,846,334,981.10 × 369,246,979.40
  4. Step 4: Simplify right side
    1,230,889,987.40x = 681,753,614,731,731,072
  5. Step 5: Solve for x
    x = 681,753,614,731,731,072/1,230,889,987.40
  6. Step 6: Final answer
    x = 553,870,469.10

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Half scale
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Double scale
Find fourth proportional to 1,230,889,988.40, 1,846,334,982.60 and 369,246,980.40
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.