Home / 1,340,712,937-2,011,358,867.88-408,108,711.79

Finding the Fourth Proportional to 1,340,712,937, 2,011,358,867.88 and 408,108,711.79

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Solution

The fourth proportional to 1,340,712,937, 2,011,358,867.88 and 408,108,711.79 is: 612,251,179.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,712,937 : 2,011,358,867.88 = 408,108,711.79 : x
  2. Step 2: Convert to fraction form
    1,340,712,937/2,011,358,867.88 = 408,108,711.79/x
  3. Step 3: Cross multiply
    1,340,712,937x = 2,011,358,867.88 × 408,108,711.79
  4. Step 4: Simplify right side
    1,340,712,937x = 820,853,076,517,899,648
  5. Step 5: Solve for x
    x = 820,853,076,517,899,648/1,340,712,937
  6. Step 6: Final answer
    x = 612,251,179.10

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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.