Home / 85,414,863.00-128,326,691.07-54,769,483.59

Finding the Fourth Proportional to 85,414,863.00, 128,326,691.07 and 54,769,483.59

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Solution

The fourth proportional to 85,414,863.00, 128,326,691.07 and 54,769,483.59 is: 82,285,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,414,863.00 : 128,326,691.07 = 54,769,483.59 : x
  2. Step 2: Convert to fraction form
    85,414,863.00/128,326,691.07 = 54,769,483.59/x
  3. Step 3: Cross multiply
    85,414,863.00x = 128,326,691.07 × 54,769,483.59
  4. Step 4: Simplify right side
    85,414,863.00x = 7,028,386,600,236,139
  5. Step 5: Solve for x
    x = 7,028,386,600,236,139/85,414,863.00
  6. Step 6: Final answer
    x = 82,285,287.98

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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.