Home / 47,723,907.20-65,861,153.12-28,145,620.76

Finding the Fourth Proportional to 47,723,907.20, 65,861,153.12 and 28,145,620.76

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Solution

The fourth proportional to 47,723,907.20, 65,861,153.12 and 28,145,620.76 is: 38,842,231.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,723,907.20 : 65,861,153.12 = 28,145,620.76 : x
  2. Step 2: Convert to fraction form
    47,723,907.20/65,861,153.12 = 28,145,620.76/x
  3. Step 3: Cross multiply
    47,723,907.20x = 65,861,153.12 × 28,145,620.76
  4. Step 4: Simplify right side
    47,723,907.20x = 1,853,703,038,272,869
  5. Step 5: Solve for x
    x = 1,853,703,038,272,869/47,723,907.20
  6. Step 6: Final answer
    x = 38,842,231.23

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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.