Home / 858,138,132.40-1,287,219,008.67-244,722,423.76

Finding the Fourth Proportional to 858,138,132.40, 1,287,219,008.67 and 244,722,423.76

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Solution

The fourth proportional to 858,138,132.40, 1,287,219,008.67 and 244,722,423.76 is: 367,087,003.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,138,132.40 : 1,287,219,008.67 = 244,722,423.76 : x
  2. Step 2: Convert to fraction form
    858,138,132.40/1,287,219,008.67 = 244,722,423.76/x
  3. Step 3: Cross multiply
    858,138,132.40x = 1,287,219,008.67 × 244,722,423.76
  4. Step 4: Simplify right side
    858,138,132.40x = 315,011,355,711,666,880
  5. Step 5: Solve for x
    x = 315,011,355,711,666,880/858,138,132.40
  6. Step 6: Final answer
    x = 367,087,003.62

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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.