Home / 215,105,637.60-322,784,427.60-78,804,799.20

Finding the Fourth Proportional to 215,105,637.60, 322,784,427.60 and 78,804,799.20

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Solution

The fourth proportional to 215,105,637.60, 322,784,427.60 and 78,804,799.20 is: 118,253,348.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,105,637.60 : 322,784,427.60 = 78,804,799.20 : x
  2. Step 2: Convert to fraction form
    215,105,637.60/322,784,427.60 = 78,804,799.20/x
  3. Step 3: Cross multiply
    215,105,637.60x = 322,784,427.60 × 78,804,799.20
  4. Step 4: Simplify right side
    215,105,637.60x = 25,436,962,001,904,940
  5. Step 5: Solve for x
    x = 25,436,962,001,904,940/215,105,637.60
  6. Step 6: Final answer
    x = 118,253,348.85

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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.