Home / 42,610,262.25-63,924,865.56-19,878,759.21

Finding the Fourth Proportional to 42,610,262.25, 63,924,865.56 and 19,878,759.21

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Solution

The fourth proportional to 42,610,262.25, 63,924,865.56 and 19,878,759.21 is: 29,822,557.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,610,262.25 : 63,924,865.56 = 19,878,759.21 : x
  2. Step 2: Convert to fraction form
    42,610,262.25/63,924,865.56 = 19,878,759.21/x
  3. Step 3: Cross multiply
    42,610,262.25x = 63,924,865.56 × 19,878,759.21
  4. Step 4: Simplify right side
    42,610,262.25x = 1,270,747,009,998,862
  5. Step 5: Solve for x
    x = 1,270,747,009,998,862/42,610,262.25
  6. Step 6: Final answer
    x = 29,822,557.83

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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.