Home / 191,874,117.30-287,727,195.15-76,820,421.30

Finding the Fourth Proportional to 191,874,117.30, 287,727,195.15 and 76,820,421.30

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Solution

The fourth proportional to 191,874,117.30, 287,727,195.15 and 76,820,421.30 is: 115,197,008.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,874,117.30 : 287,727,195.15 = 76,820,421.30 : x
  2. Step 2: Convert to fraction form
    191,874,117.30/287,727,195.15 = 76,820,421.30/x
  3. Step 3: Cross multiply
    191,874,117.30x = 287,727,195.15 × 76,820,421.30
  4. Step 4: Simplify right side
    191,874,117.30x = 22,103,324,350,890,316
  5. Step 5: Solve for x
    x = 22,103,324,350,890,316/191,874,117.30
  6. Step 6: Final answer
    x = 115,197,008.65

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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.