Home / 91,872,001.80-137,808,002.70-79,106,920.20

Finding the Fourth Proportional to 91,872,001.80, 137,808,002.70 and 79,106,920.20

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Solution

The fourth proportional to 91,872,001.80, 137,808,002.70 and 79,106,920.20 is: 118,660,380.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,872,001.80 : 137,808,002.70 = 79,106,920.20 : x
  2. Step 2: Convert to fraction form
    91,872,001.80/137,808,002.70 = 79,106,920.20/x
  3. Step 3: Cross multiply
    91,872,001.80x = 137,808,002.70 × 79,106,920.20
  4. Step 4: Simplify right side
    91,872,001.80x = 10,901,566,672,510,284
  5. Step 5: Solve for x
    x = 10,901,566,672,510,284/91,872,001.80
  6. Step 6: Final answer
    x = 118,660,380.30

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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.