Home / 206,688,451.20-310,032,676.80-91,897,195.20

Finding the Fourth Proportional to 206,688,451.20, 310,032,676.80 and 91,897,195.20

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Solution

The fourth proportional to 206,688,451.20, 310,032,676.80 and 91,897,195.20 is: 137,845,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,688,451.20 : 310,032,676.80 = 91,897,195.20 : x
  2. Step 2: Convert to fraction form
    206,688,451.20/310,032,676.80 = 91,897,195.20/x
  3. Step 3: Cross multiply
    206,688,451.20x = 310,032,676.80 × 91,897,195.20
  4. Step 4: Simplify right side
    206,688,451.20x = 28,491,133,418,268,112
  5. Step 5: Solve for x
    x = 28,491,133,418,268,112/206,688,451.20
  6. Step 6: Final answer
    x = 137,845,792.80

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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.