Home / 48,171,780.90-66,446,819.01-28,578,798.18

Finding the Fourth Proportional to 48,171,780.90, 66,446,819.01 and 28,578,798.18

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Solution

The fourth proportional to 48,171,780.90, 66,446,819.01 and 28,578,798.18 is: 39,420,801.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,171,780.90 : 66,446,819.01 = 28,578,798.18 : x
  2. Step 2: Convert to fraction form
    48,171,780.90/66,446,819.01 = 28,578,798.18/x
  3. Step 3: Cross multiply
    48,171,780.90x = 66,446,819.01 × 28,578,798.18
  4. Step 4: Simplify right side
    48,171,780.90x = 1,898,970,230,189,777.25
  5. Step 5: Solve for x
    x = 1,898,970,230,189,777.25/48,171,780.90
  6. Step 6: Final answer
    x = 39,420,801.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.