Home / 206,688,336.20-310,032,504.30-91,897,080.20

Finding the Fourth Proportional to 206,688,336.20, 310,032,504.30 and 91,897,080.20

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Solution

The fourth proportional to 206,688,336.20, 310,032,504.30 and 91,897,080.20 is: 137,845,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,688,336.20 : 310,032,504.30 = 91,897,080.20 : x
  2. Step 2: Convert to fraction form
    206,688,336.20/310,032,504.30 = 91,897,080.20/x
  3. Step 3: Cross multiply
    206,688,336.20x = 310,032,504.30 × 91,897,080.20
  4. Step 4: Simplify right side
    206,688,336.20x = 28,491,081,912,263,948
  5. Step 5: Solve for x
    x = 28,491,081,912,263,948/206,688,336.20
  6. Step 6: Final answer
    x = 137,845,620.30

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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.