Home / 15,055,520.89-20,776,807.79-8,180,117.77

Finding the Fourth Proportional to 15,055,520.89, 20,776,807.79 and 8,180,117.77

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Solution

The fourth proportional to 15,055,520.89, 20,776,807.79 and 8,180,117.77 is: 11,288,665.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,055,520.89 : 20,776,807.79 = 8,180,117.77 : x
  2. Step 2: Convert to fraction form
    15,055,520.89/20,776,807.79 = 8,180,117.77/x
  3. Step 3: Cross multiply
    15,055,520.89x = 20,776,807.79 × 8,180,117.77
  4. Step 4: Simplify right side
    15,055,520.89x = 169,956,734,606,853.41
  5. Step 5: Solve for x
    x = 169,956,734,606,853.41/15,055,520.89
  6. Step 6: Final answer
    x = 11,288,665.19

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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.