Home / 47,931,438.80-71,897,158.20-40,278,688.40

Finding the Fourth Proportional to 47,931,438.80, 71,897,158.20 and 40,278,688.40

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Solution

The fourth proportional to 47,931,438.80, 71,897,158.20 and 40,278,688.40 is: 60,418,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,931,438.80 : 71,897,158.20 = 40,278,688.40 : x
  2. Step 2: Convert to fraction form
    47,931,438.80/71,897,158.20 = 40,278,688.40/x
  3. Step 3: Cross multiply
    47,931,438.80x = 71,897,158.20 × 40,278,688.40
  4. Step 4: Simplify right side
    47,931,438.80x = 2,895,923,231,983,305
  5. Step 5: Solve for x
    x = 2,895,923,231,983,305/47,931,438.80
  6. Step 6: Final answer
    x = 60,418,032.60

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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.