Home / 20,859,904,682.20-31,289,857,023.30-15,962,144,426.20

Finding the Fourth Proportional to 20,859,904,682.20, 31,289,857,023.30 and 15,962,144,426.20

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Solution

The fourth proportional to 20,859,904,682.20, 31,289,857,023.30 and 15,962,144,426.20 is: 23,943,216,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859,904,682.20 : 31,289,857,023.30 = 15,962,144,426.20 : x
  2. Step 2: Convert to fraction form
    20,859,904,682.20/31,289,857,023.30 = 15,962,144,426.20/x
  3. Step 3: Cross multiply
    20,859,904,682.20x = 31,289,857,023.30 × 15,962,144,426.20
  4. Step 4: Simplify right side
    20,859,904,682.20x = 499,453,216,881,063,034,880
  5. Step 5: Solve for x
    x = 499,453,216,881,063,034,880/20,859,904,682.20
  6. Step 6: Final answer
    x = 23,943,216,639.30

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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.