Home / 86,161,970.43-129,052,949.04-71,220,386.43

Finding the Fourth Proportional to 86,161,970.43, 129,052,949.04 and 71,220,386.43

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Solution

The fourth proportional to 86,161,970.43, 129,052,949.04 and 71,220,386.43 is: 106,673,522.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,161,970.43 : 129,052,949.04 = 71,220,386.43 : x
  2. Step 2: Convert to fraction form
    86,161,970.43/129,052,949.04 = 71,220,386.43/x
  3. Step 3: Cross multiply
    86,161,970.43x = 129,052,949.04 × 71,220,386.43
  4. Step 4: Simplify right side
    86,161,970.43x = 9,191,200,900,559,898
  5. Step 5: Solve for x
    x = 9,191,200,900,559,898/86,161,970.43
  6. Step 6: Final answer
    x = 106,673,522.61

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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.