Home / 84,019,583.20-126,029,374.80-71,030,552.80

Finding the Fourth Proportional to 84,019,583.20, 126,029,374.80 and 71,030,552.80

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Solution

The fourth proportional to 84,019,583.20, 126,029,374.80 and 71,030,552.80 is: 106,545,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,019,583.20 : 126,029,374.80 = 71,030,552.80 : x
  2. Step 2: Convert to fraction form
    84,019,583.20/126,029,374.80 = 71,030,552.80/x
  3. Step 3: Cross multiply
    84,019,583.20x = 126,029,374.80 × 71,030,552.80
  4. Step 4: Simplify right side
    84,019,583.20x = 8,951,936,161,082,389
  5. Step 5: Solve for x
    x = 8,951,936,161,082,389/84,019,583.20
  6. Step 6: Final answer
    x = 106,545,829.20

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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.