Home / 20,859,904,683.20-31,289,857,024.80-15,962,144,427.20

Finding the Fourth Proportional to 20,859,904,683.20, 31,289,857,024.80 and 15,962,144,427.20

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Solution

The fourth proportional to 20,859,904,683.20, 31,289,857,024.80 and 15,962,144,427.20 is: 23,943,216,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859,904,683.20 : 31,289,857,024.80 = 15,962,144,427.20 : x
  2. Step 2: Convert to fraction form
    20,859,904,683.20/31,289,857,024.80 = 15,962,144,427.20/x
  3. Step 3: Cross multiply
    20,859,904,683.20x = 31,289,857,024.80 × 15,962,144,427.20
  4. Step 4: Simplify right side
    20,859,904,683.20x = 499,453,216,936,296,120,320
  5. Step 5: Solve for x
    x = 499,453,216,936,296,120,320/20,859,904,683.20
  6. Step 6: Final answer
    x = 23,943,216,640.80

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1.5x scale

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.