Home / 21,457,851.30-32,186,776.95-12,387,924.90

Finding the Fourth Proportional to 21,457,851.30, 32,186,776.95 and 12,387,924.90

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Solution

The fourth proportional to 21,457,851.30, 32,186,776.95 and 12,387,924.90 is: 18,581,887.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457,851.30 : 32,186,776.95 = 12,387,924.90 : x
  2. Step 2: Convert to fraction form
    21,457,851.30/32,186,776.95 = 12,387,924.90/x
  3. Step 3: Cross multiply
    21,457,851.30x = 32,186,776.95 × 12,387,924.90
  4. Step 4: Simplify right side
    21,457,851.30x = 398,727,375,629,651.06
  5. Step 5: Solve for x
    x = 398,727,375,629,651.06/21,457,851.30
  6. Step 6: Final answer
    x = 18,581,887.35

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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.