Home / 77,176,986.72-106,505,489.52-42,372,885.60

Finding the Fourth Proportional to 77,176,986.72, 106,505,489.52 and 42,372,885.60

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Solution

The fourth proportional to 77,176,986.72, 106,505,489.52 and 42,372,885.60 is: 58,475,267.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,176,986.72 : 106,505,489.52 = 42,372,885.60 : x
  2. Step 2: Convert to fraction form
    77,176,986.72/106,505,489.52 = 42,372,885.60/x
  3. Step 3: Cross multiply
    77,176,986.72x = 106,505,489.52 × 42,372,885.60
  4. Step 4: Simplify right side
    77,176,986.72x = 4,512,944,923,202,959
  5. Step 5: Solve for x
    x = 4,512,944,923,202,959/77,176,986.72
  6. Step 6: Final answer
    x = 58,475,267.24

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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.