Home / 119,724,760.20-179,657,999.10-78,902,218.20

Finding the Fourth Proportional to 119,724,760.20, 179,657,999.10 and 78,902,218.20

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Solution

The fourth proportional to 119,724,760.20, 179,657,999.10 and 78,902,218.20 is: 118,400,025.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,724,760.20 : 179,657,999.10 = 78,902,218.20 : x
  2. Step 2: Convert to fraction form
    119,724,760.20/179,657,999.10 = 78,902,218.20/x
  3. Step 3: Cross multiply
    119,724,760.20x = 179,657,999.10 × 78,902,218.20
  4. Step 4: Simplify right side
    119,724,760.20x = 14,175,414,646,363,604
  5. Step 5: Solve for x
    x = 14,175,414,646,363,604/119,724,760.20
  6. Step 6: Final answer
    x = 118,400,025.38

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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.