Home / 78,335,727,129.05-117,526,644,595.93-25,275,764,868.17

Finding the Fourth Proportional to 78,335,727,129.05, 117,526,644,595.93 and 25,275,764,868.17

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Solution

The fourth proportional to 78,335,727,129.05, 117,526,644,595.93 and 25,275,764,868.17 is: 37,921,085,862.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,335,727,129.05 : 117,526,644,595.93 = 25,275,764,868.17 : x
  2. Step 2: Convert to fraction form
    78,335,727,129.05/117,526,644,595.93 = 25,275,764,868.17/x
  3. Step 3: Cross multiply
    78,335,727,129.05x = 117,526,644,595.93 × 25,275,764,868.17
  4. Step 4: Simplify right side
    78,335,727,129.05x = 2,970,575,834,551,121,608,704
  5. Step 5: Solve for x
    x = 2,970,575,834,551,121,608,704/78,335,727,129.05
  6. Step 6: Final answer
    x = 37,921,085,862.36

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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.