Home / 86,622,905.70-129,934,358.55-86,025,708.90

Finding the Fourth Proportional to 86,622,905.70, 129,934,358.55 and 86,025,708.90

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Solution

The fourth proportional to 86,622,905.70, 129,934,358.55 and 86,025,708.90 is: 129,038,563.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,622,905.70 : 129,934,358.55 = 86,025,708.90 : x
  2. Step 2: Convert to fraction form
    86,622,905.70/129,934,358.55 = 86,025,708.90/x
  3. Step 3: Cross multiply
    86,622,905.70x = 129,934,358.55 × 86,025,708.90
  4. Step 4: Simplify right side
    86,622,905.70x = 11,177,695,304,730,526
  5. Step 5: Solve for x
    x = 11,177,695,304,730,526/86,622,905.70
  6. Step 6: Final answer
    x = 129,038,563.35

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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.