Home / 120,431,046.18-166,205,006.81-67,506,907.80

Finding the Fourth Proportional to 120,431,046.18, 166,205,006.81 and 67,506,907.80

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Solution

The fourth proportional to 120,431,046.18, 166,205,006.81 and 67,506,907.80 is: 93,165,229.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,431,046.18 : 166,205,006.81 = 67,506,907.80 : x
  2. Step 2: Convert to fraction form
    120,431,046.18/166,205,006.81 = 67,506,907.80/x
  3. Step 3: Cross multiply
    120,431,046.18x = 166,205,006.81 × 67,506,907.80
  4. Step 4: Simplify right side
    120,431,046.18x = 11,219,986,071,305,466
  5. Step 5: Solve for x
    x = 11,219,986,071,305,466/120,431,046.18
  6. Step 6: Final answer
    x = 93,165,229.63

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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.