Home / 120,853,611.39-166,778,007.71-65,849,467.89

Finding the Fourth Proportional to 120,853,611.39, 166,778,007.71 and 65,849,467.89

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Solution

The fourth proportional to 120,853,611.39, 166,778,007.71 and 65,849,467.89 is: 90,872,278.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,853,611.39 : 166,778,007.71 = 65,849,467.89 : x
  2. Step 2: Convert to fraction form
    120,853,611.39/166,778,007.71 = 65,849,467.89/x
  3. Step 3: Cross multiply
    120,853,611.39x = 166,778,007.71 × 65,849,467.89
  4. Step 4: Simplify right side
    120,853,611.39x = 10,982,243,062,788,552
  5. Step 5: Solve for x
    x = 10,982,243,062,788,552/120,853,611.39
  6. Step 6: Final answer
    x = 90,872,278.76

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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.