Home / 15,053,615.60-20,774,135.13-8,178,146.87

Finding the Fourth Proportional to 15,053,615.60, 20,774,135.13 and 8,178,146.87

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Solution

The fourth proportional to 15,053,615.60, 20,774,135.13 and 8,178,146.87 is: 11,285,921.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053,615.60 : 20,774,135.13 = 8,178,146.87 : x
  2. Step 2: Convert to fraction form
    15,053,615.60/20,774,135.13 = 8,178,146.87/x
  3. Step 3: Cross multiply
    15,053,615.60x = 20,774,135.13 × 8,178,146.87
  4. Step 4: Simplify right side
    15,053,615.60x = 169,893,928,211,633.81
  5. Step 5: Solve for x
    x = 169,893,928,211,633.81/15,053,615.60
  6. Step 6: Final answer
    x = 11,285,921.78

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1.5x scale

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.