Home / 91,687,306.12-137,547,969.10-30,280,717.96

Finding the Fourth Proportional to 91,687,306.12, 137,547,969.10 and 30,280,717.96

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Solution

The fourth proportional to 91,687,306.12, 137,547,969.10 and 30,280,717.96 is: 45,426,694.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,687,306.12 : 137,547,969.10 = 30,280,717.96 : x
  2. Step 2: Convert to fraction form
    91,687,306.12/137,547,969.10 = 30,280,717.96/x
  3. Step 3: Cross multiply
    91,687,306.12x = 137,547,969.10 × 30,280,717.96
  4. Step 4: Simplify right side
    91,687,306.12x = 4,165,051,258,287,895
  5. Step 5: Solve for x
    x = 4,165,051,258,287,895/91,687,306.12
  6. Step 6: Final answer
    x = 45,426,694.65

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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.