Home / 131,101,304.28-180,919,810.44-72,363,984.54

Finding the Fourth Proportional to 131,101,304.28, 180,919,810.44 and 72,363,984.54

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Solution

The fourth proportional to 131,101,304.28, 180,919,810.44 and 72,363,984.54 is: 99,862,304.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,101,304.28 : 180,919,810.44 = 72,363,984.54 : x
  2. Step 2: Convert to fraction form
    131,101,304.28/180,919,810.44 = 72,363,984.54/x
  3. Step 3: Cross multiply
    131,101,304.28x = 180,919,810.44 × 72,363,984.54
  4. Step 4: Simplify right side
    131,101,304.28x = 13,092,078,365,659,892
  5. Step 5: Solve for x
    x = 13,092,078,365,659,892/131,101,304.28
  6. Step 6: Final answer
    x = 99,862,304.48

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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.