Home / 85,016,779.50-117,359,356.85-57,155,648.14

Finding the Fourth Proportional to 85,016,779.50, 117,359,356.85 and 57,155,648.14

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Solution

The fourth proportional to 85,016,779.50, 117,359,356.85 and 57,155,648.14 is: 78,899,131.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,016,779.50 : 117,359,356.85 = 57,155,648.14 : x
  2. Step 2: Convert to fraction form
    85,016,779.50/117,359,356.85 = 57,155,648.14/x
  3. Step 3: Cross multiply
    85,016,779.50x = 117,359,356.85 × 57,155,648.14
  4. Step 4: Simplify right side
    85,016,779.50x = 6,707,750,106,055,298
  5. Step 5: Solve for x
    x = 6,707,750,106,055,298/85,016,779.50
  6. Step 6: Final answer
    x = 78,899,131.98

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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.