Home / 91,872,002.30-137,808,003.45-79,106,920.70

Finding the Fourth Proportional to 91,872,002.30, 137,808,003.45 and 79,106,920.70

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Solution

The fourth proportional to 91,872,002.30, 137,808,003.45 and 79,106,920.70 is: 118,660,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,872,002.30 : 137,808,003.45 = 79,106,920.70 : x
  2. Step 2: Convert to fraction form
    91,872,002.30/137,808,003.45 = 79,106,920.70/x
  3. Step 3: Cross multiply
    91,872,002.30x = 137,808,003.45 × 79,106,920.70
  4. Step 4: Simplify right side
    91,872,002.30x = 10,901,566,800,744,476
  5. Step 5: Solve for x
    x = 10,901,566,800,744,476/91,872,002.30
  6. Step 6: Final answer
    x = 118,660,381.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.