Home / 1,340,854,470.45-2,011,366,721.66-420,767,124.21

Finding the Fourth Proportional to 1,340,854,470.45, 2,011,366,721.66 and 420,767,124.21

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Solution

The fourth proportional to 1,340,854,470.45, 2,011,366,721.66 and 420,767,124.21 is: 631,177,364.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,854,470.45 : 2,011,366,721.66 = 420,767,124.21 : x
  2. Step 2: Convert to fraction form
    1,340,854,470.45/2,011,366,721.66 = 420,767,124.21/x
  3. Step 3: Cross multiply
    1,340,854,470.45x = 2,011,366,721.66 × 420,767,124.21
  4. Step 4: Simplify right side
    1,340,854,470.45x = 846,316,991,202,469,888
  5. Step 5: Solve for x
    x = 846,316,991,202,469,888/1,340,854,470.45
  6. Step 6: Final answer
    x = 631,177,364.77

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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.