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Finding the Fourth Proportional to 79,786,854.40, 119,686,502.40 and 34,350,131.20

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Solution

The fourth proportional to 79,786,854.40, 119,686,502.40 and 34,350,131.20 is: 51,527,875.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,786,854.40 : 119,686,502.40 = 34,350,131.20 : x
  2. Step 2: Convert to fraction form
    79,786,854.40/119,686,502.40 = 34,350,131.20/x
  3. Step 3: Cross multiply
    79,786,854.40x = 119,686,502.40 × 34,350,131.20
  4. Step 4: Simplify right side
    79,786,854.40x = 4,111,247,060,309,115.50
  5. Step 5: Solve for x
    x = 4,111,247,060,309,115.50/79,786,854.40
  6. Step 6: Final answer
    x = 51,527,875.00

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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.