Home / 131,397,551.74-181,329,796.30-72,664,168.66

Finding the Fourth Proportional to 131,397,551.74, 181,329,796.30 and 72,664,168.66

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Solution

The fourth proportional to 131,397,551.74, 181,329,796.30 and 72,664,168.66 is: 100,277,202.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,397,551.74 : 181,329,796.30 = 72,664,168.66 : x
  2. Step 2: Convert to fraction form
    131,397,551.74/181,329,796.30 = 72,664,168.66/x
  3. Step 3: Cross multiply
    131,397,551.74x = 181,329,796.30 × 72,664,168.66
  4. Step 4: Simplify right side
    131,397,551.74x = 13,176,178,901,426,644
  5. Step 5: Solve for x
    x = 13,176,178,901,426,644/131,397,551.74
  6. Step 6: Final answer
    x = 100,277,202.48

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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.