Home / 131,104,973.52-180,924,872.40-72,367,655.04

Finding the Fourth Proportional to 131,104,973.52, 180,924,872.40 and 72,367,655.04

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Solution

The fourth proportional to 131,104,973.52, 180,924,872.40 and 72,367,655.04 is: 99,867,368.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,104,973.52 : 180,924,872.40 = 72,367,655.04 : x
  2. Step 2: Convert to fraction form
    131,104,973.52/180,924,872.40 = 72,367,655.04/x
  3. Step 3: Cross multiply
    131,104,973.52x = 180,924,872.40 × 72,367,655.04
  4. Step 4: Simplify right side
    131,104,973.52x = 13,093,108,753,999,218
  5. Step 5: Solve for x
    x = 13,093,108,753,999,218/131,104,973.52
  6. Step 6: Final answer
    x = 99,867,368.89

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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.