Home / 140,680,192.31-194,139,805.28-77,957,337.98

Finding the Fourth Proportional to 140,680,192.31, 194,139,805.28 and 77,957,337.98

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Solution

The fourth proportional to 140,680,192.31, 194,139,805.28 and 77,957,337.98 is: 107,581,758.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,680,192.31 : 194,139,805.28 = 77,957,337.98 : x
  2. Step 2: Convert to fraction form
    140,680,192.31/194,139,805.28 = 77,957,337.98/x
  3. Step 3: Cross multiply
    140,680,192.31x = 194,139,805.28 × 77,957,337.98
  4. Step 4: Simplify right side
    140,680,192.31x = 15,134,622,415,679,912
  5. Step 5: Solve for x
    x = 15,134,622,415,679,912/140,680,192.31
  6. Step 6: Final answer
    x = 107,581,758.08

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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.