Home / 14,990,969.66-20,687,545.04-8,115,451.72

Finding the Fourth Proportional to 14,990,969.66, 20,687,545.04 and 8,115,451.72

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Solution

The fourth proportional to 14,990,969.66, 20,687,545.04 and 8,115,451.72 is: 11,199,327.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990,969.66 : 20,687,545.04 = 8,115,451.72 : x
  2. Step 2: Convert to fraction form
    14,990,969.66/20,687,545.04 = 8,115,451.72/x
  3. Step 3: Cross multiply
    14,990,969.66x = 20,687,545.04 × 8,115,451.72
  4. Step 4: Simplify right side
    14,990,969.66x = 167,888,772,977,445.47
  5. Step 5: Solve for x
    x = 167,888,772,977,445.47/14,990,969.66
  6. Step 6: Final answer
    x = 11,199,327.11

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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.