Home / 142,543,876.85-196,710,551.60-77,353,780.85

Finding the Fourth Proportional to 142,543,876.85, 196,710,551.60 and 77,353,780.85

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Solution

The fourth proportional to 142,543,876.85, 196,710,551.60 and 77,353,780.85 is: 106,748,218.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,543,876.85 : 196,710,551.60 = 77,353,780.85 : x
  2. Step 2: Convert to fraction form
    142,543,876.85/196,710,551.60 = 77,353,780.85/x
  3. Step 3: Cross multiply
    142,543,876.85x = 196,710,551.60 × 77,353,780.85
  4. Step 4: Simplify right side
    142,543,876.85x = 15,216,304,897,978,694
  5. Step 5: Solve for x
    x = 15,216,304,897,978,694/142,543,876.85
  6. Step 6: Final answer
    x = 106,748,218.41

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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.