Home / 52,128,001.20-78,192,001.80-21,832,705.20

Finding the Fourth Proportional to 52,128,001.20, 78,192,001.80 and 21,832,705.20

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Solution

The fourth proportional to 52,128,001.20, 78,192,001.80 and 21,832,705.20 is: 32,749,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,128,001.20 : 78,192,001.80 = 21,832,705.20 : x
  2. Step 2: Convert to fraction form
    52,128,001.20/78,192,001.80 = 21,832,705.20/x
  3. Step 3: Cross multiply
    52,128,001.20x = 78,192,001.80 × 21,832,705.20
  4. Step 4: Simplify right side
    52,128,001.20x = 1,707,142,924,297,269.25
  5. Step 5: Solve for x
    x = 1,707,142,924,297,269.25/52,128,001.20
  6. Step 6: Final answer
    x = 32,749,057.80

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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.