Home / 14,990,730.45-20,687,275.11-8,115,212.49

Finding the Fourth Proportional to 14,990,730.45, 20,687,275.11 and 8,115,212.49

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Solution

The fourth proportional to 14,990,730.45, 20,687,275.11 and 8,115,212.49 is: 11,199,029.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990,730.45 : 20,687,275.11 = 8,115,212.49 : x
  2. Step 2: Convert to fraction form
    14,990,730.45/20,687,275.11 = 8,115,212.49/x
  3. Step 3: Cross multiply
    14,990,730.45x = 20,687,275.11 × 8,115,212.49
  4. Step 4: Simplify right side
    14,990,730.45x = 167,881,633,356,738.12
  5. Step 5: Solve for x
    x = 167,881,633,356,738.12/14,990,730.45
  6. Step 6: Final answer
    x = 11,199,029.55

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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.