Home / 137,267,655.72-189,428,632.18-74,543,205.40

Finding the Fourth Proportional to 137,267,655.72, 189,428,632.18 and 74,543,205.40

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Solution

The fourth proportional to 137,267,655.72, 189,428,632.18 and 74,543,205.40 is: 102,869,225.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,267,655.72 : 189,428,632.18 = 74,543,205.40 : x
  2. Step 2: Convert to fraction form
    137,267,655.72/189,428,632.18 = 74,543,205.40/x
  3. Step 3: Cross multiply
    137,267,655.72x = 189,428,632.18 × 74,543,205.40
  4. Step 4: Simplify right side
    137,267,655.72x = 14,120,617,437,234,792
  5. Step 5: Solve for x
    x = 14,120,617,437,234,792/137,267,655.72
  6. Step 6: Final answer
    x = 102,869,225.55

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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.