Home / 612,380,810.40-918,571,215.60-549,245,619.60

Finding the Fourth Proportional to 612,380,810.40, 918,571,215.60 and 549,245,619.60

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Solution

The fourth proportional to 612,380,810.40, 918,571,215.60 and 549,245,619.60 is: 823,868,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,380,810.40 : 918,571,215.60 = 549,245,619.60 : x
  2. Step 2: Convert to fraction form
    612,380,810.40/918,571,215.60 = 549,245,619.60/x
  3. Step 3: Cross multiply
    612,380,810.40x = 918,571,215.60 × 549,245,619.60
  4. Step 4: Simplify right side
    612,380,810.40x = 504,521,216,458,947,200
  5. Step 5: Solve for x
    x = 504,521,216,458,947,200/612,380,810.40
  6. Step 6: Final answer
    x = 823,868,429.40

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Double scale
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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.