Home / 75,665,287.20-113,497,930.80-57,370,430.78

Finding the Fourth Proportional to 75,665,287.20, 113,497,930.80 and 57,370,430.78

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Solution

The fourth proportional to 75,665,287.20, 113,497,930.80 and 57,370,430.78 is: 86,055,646.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,665,287.20 : 113,497,930.80 = 57,370,430.78 : x
  2. Step 2: Convert to fraction form
    75,665,287.20/113,497,930.80 = 57,370,430.78/x
  3. Step 3: Cross multiply
    75,665,287.20x = 113,497,930.80 × 57,370,430.78
  4. Step 4: Simplify right side
    75,665,287.20x = 6,511,425,182,067,140
  5. Step 5: Solve for x
    x = 6,511,425,182,067,140/75,665,287.20
  6. Step 6: Final answer
    x = 86,055,646.16

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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.