Home / 15,315,161.10-21,134,648.61-8,345,899.20

Finding the Fourth Proportional to 15,315,161.10, 21,134,648.61 and 8,345,899.20

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Solution

The fourth proportional to 15,315,161.10, 21,134,648.61 and 8,345,899.20 is: 11,517,191.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315,161.10 : 21,134,648.61 = 8,345,899.20 : x
  2. Step 2: Convert to fraction form
    15,315,161.10/21,134,648.61 = 8,345,899.20/x
  3. Step 3: Cross multiply
    15,315,161.10x = 21,134,648.61 × 8,345,899.20
  4. Step 4: Simplify right side
    15,315,161.10x = 176,387,646,926,480.12
  5. Step 5: Solve for x
    x = 176,387,646,926,480.12/15,315,161.10
  6. Step 6: Final answer
    x = 11,517,191.74

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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.