Home / 100,301,342.08-138,474,713.28-77,050,791.04

Finding the Fourth Proportional to 100,301,342.08, 138,474,713.28 and 77,050,791.04

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Solution

The fourth proportional to 100,301,342.08, 138,474,713.28 and 77,050,791.04 is: 106,375,308.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,301,342.08 : 138,474,713.28 = 77,050,791.04 : x
  2. Step 2: Convert to fraction form
    100,301,342.08/138,474,713.28 = 77,050,791.04/x
  3. Step 3: Cross multiply
    100,301,342.08x = 138,474,713.28 × 77,050,791.04
  4. Step 4: Simplify right side
    100,301,342.08x = 10,669,586,197,261,194
  5. Step 5: Solve for x
    x = 10,669,586,197,261,194/100,301,342.08
  6. Step 6: Final answer
    x = 106,375,308.41

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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.