Home / 1,340,712,932.97-2,011,358,861.87-408,108,707.76

Finding the Fourth Proportional to 1,340,712,932.97, 2,011,358,861.87 and 408,108,707.76

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Solution

The fourth proportional to 1,340,712,932.97, 2,011,358,861.87 and 408,108,707.76 is: 612,251,173.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,712,932.97 : 2,011,358,861.87 = 408,108,707.76 : x
  2. Step 2: Convert to fraction form
    1,340,712,932.97/2,011,358,861.87 = 408,108,707.76/x
  3. Step 3: Cross multiply
    1,340,712,932.97x = 2,011,358,861.87 × 408,108,707.76
  4. Step 4: Simplify right side
    1,340,712,932.97x = 820,853,065,957,349,504
  5. Step 5: Solve for x
    x = 820,853,065,957,349,504/1,340,712,932.97
  6. Step 6: Final answer
    x = 612,251,173.07

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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.