Home / 1,340,712,936-2,011,358,866.38-408,108,710.79

Finding the Fourth Proportional to 1,340,712,936, 2,011,358,866.38 and 408,108,710.79

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Solution

The fourth proportional to 1,340,712,936, 2,011,358,866.38 and 408,108,710.79 is: 612,251,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,712,936 : 2,011,358,866.38 = 408,108,710.79 : x
  2. Step 2: Convert to fraction form
    1,340,712,936/2,011,358,866.38 = 408,108,710.79/x
  3. Step 3: Cross multiply
    1,340,712,936x = 2,011,358,866.38 × 408,108,710.79
  4. Step 4: Simplify right side
    1,340,712,936x = 820,853,073,894,377,728
  5. Step 5: Solve for x
    x = 820,853,073,894,377,728/1,340,712,936
  6. Step 6: Final answer
    x = 612,251,177.60

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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.