Home / 21,238,869,480.50-29,309,642,752.88-11,723,423,025.61

Finding the Fourth Proportional to 21,238,869,480.50, 29,309,642,752.88 and 11,723,423,025.61

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Solution

The fourth proportional to 21,238,869,480.50, 29,309,642,752.88 and 11,723,423,025.61 is: 16,178,325,359.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,238,869,480.50 : 29,309,642,752.88 = 11,723,423,025.61 : x
  2. Step 2: Convert to fraction form
    21,238,869,480.50/29,309,642,752.88 = 11,723,423,025.61/x
  3. Step 3: Cross multiply
    21,238,869,480.50x = 29,309,642,752.88 × 11,723,423,025.61
  4. Step 4: Simplify right side
    21,238,869,480.50x = 343,609,340,721,516,707,840
  5. Step 5: Solve for x
    x = 343,609,340,721,516,707,840/21,238,869,480.50
  6. Step 6: Final answer
    x = 16,178,325,359.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.