Home / 131,251,830.98-181,129,427.37-72,515,846.97

Finding the Fourth Proportional to 131,251,830.98, 181,129,427.37 and 72,515,846.97

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Solution

The fourth proportional to 131,251,830.98, 181,129,427.37 and 72,515,846.97 is: 100,072,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,251,830.98 : 181,129,427.37 = 72,515,846.97 : x
  2. Step 2: Convert to fraction form
    131,251,830.98/181,129,427.37 = 72,515,846.97/x
  3. Step 3: Cross multiply
    131,251,830.98x = 181,129,427.37 × 72,515,846.97
  4. Step 4: Simplify right side
    131,251,830.98x = 13,134,753,836,926,650
  5. Step 5: Solve for x
    x = 13,134,753,836,926,650/131,251,830.98
  6. Step 6: Final answer
    x = 100,072,918.90

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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.