Home / 1,309,627,121.80-1,964,750,337.60-424,311,049.48

Finding the Fourth Proportional to 1,309,627,121.80, 1,964,750,337.60 and 424,311,049.48

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Solution

The fourth proportional to 1,309,627,121.80, 1,964,750,337.60 and 424,311,049.48 is: 636,566,900.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,627,121.80 : 1,964,750,337.60 = 424,311,049.48 : x
  2. Step 2: Convert to fraction form
    1,309,627,121.80/1,964,750,337.60 = 424,311,049.48/x
  3. Step 3: Cross multiply
    1,309,627,121.80x = 1,964,750,337.60 × 424,311,049.48
  4. Step 4: Simplify right side
    1,309,627,121.80x = 833,665,277,713,240,320
  5. Step 5: Solve for x
    x = 833,665,277,713,240,320/1,309,627,121.80
  6. Step 6: Final answer
    x = 636,566,900.48

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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.