Home / 85,414,863.41-128,326,691.63-54,769,484

Finding the Fourth Proportional to 85,414,863.41, 128,326,691.63 and 54,769,484

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Solution

The fourth proportional to 85,414,863.41, 128,326,691.63 and 54,769,484 is: 82,285,288.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,414,863.41 : 128,326,691.63 = 54,769,484 : x
  2. Step 2: Convert to fraction form
    85,414,863.41/128,326,691.63 = 54,769,484/x
  3. Step 3: Cross multiply
    85,414,863.41x = 128,326,691.63 × 54,769,484
  4. Step 4: Simplify right side
    85,414,863.41x = 7,028,386,684,002,219
  5. Step 5: Solve for x
    x = 7,028,386,684,002,219/85,414,863.41
  6. Step 6: Final answer
    x = 82,285,288.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.