Home / 42,387,287.20-63,580,930.80-16,815,133.60

Finding the Fourth Proportional to 42,387,287.20, 63,580,930.80 and 16,815,133.60

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Solution

The fourth proportional to 42,387,287.20, 63,580,930.80 and 16,815,133.60 is: 25,222,700.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,387,287.20 : 63,580,930.80 = 16,815,133.60 : x
  2. Step 2: Convert to fraction form
    42,387,287.20/63,580,930.80 = 16,815,133.60/x
  3. Step 3: Cross multiply
    42,387,287.20x = 63,580,930.80 × 16,815,133.60
  4. Step 4: Simplify right side
    42,387,287.20x = 1,069,121,845,814,354.88
  5. Step 5: Solve for x
    x = 1,069,121,845,814,354.88/42,387,287.20
  6. Step 6: Final answer
    x = 25,222,700.40

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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.