Home / 1,340,712,969.40-2,011,358,916.60-408,108,744.28

Finding the Fourth Proportional to 1,340,712,969.40, 2,011,358,916.60 and 408,108,744.28

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Solution

The fourth proportional to 1,340,712,969.40, 2,011,358,916.60 and 408,108,744.28 is: 612,251,227.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,712,969.40 : 2,011,358,916.60 = 408,108,744.28 : x
  2. Step 2: Convert to fraction form
    1,340,712,969.40/2,011,358,916.60 = 408,108,744.28/x
  3. Step 3: Cross multiply
    1,340,712,969.40x = 2,011,358,916.60 × 408,108,744.28
  4. Step 4: Simplify right side
    1,340,712,969.40x = 820,853,161,750,007,168
  5. Step 5: Solve for x
    x = 820,853,161,750,007,168/1,340,712,969.40
  6. Step 6: Final answer
    x = 612,251,227.88

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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.