Home / 65,554,778.16-90,465,612-36,186,129.90

Finding the Fourth Proportional to 65,554,778.16, 90,465,612 and 36,186,129.90

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Solution

The fourth proportional to 65,554,778.16, 90,465,612 and 36,186,129.90 is: 49,936,869.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,554,778.16 : 90,465,612 = 36,186,129.90 : x
  2. Step 2: Convert to fraction form
    65,554,778.16/90,465,612 = 36,186,129.90/x
  3. Step 3: Cross multiply
    65,554,778.16x = 90,465,612 × 36,186,129.90
  4. Step 4: Simplify right side
    65,554,778.16x = 3,273,600,387,314,998.50
  5. Step 5: Solve for x
    x = 3,273,600,387,314,998.50/65,554,778.16
  6. Step 6: Final answer
    x = 49,936,869.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.