Home / 85,235,228.83-117,656,602.90-55,868,453.89

Finding the Fourth Proportional to 85,235,228.83, 117,656,602.90 and 55,868,453.89

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Solution

The fourth proportional to 85,235,228.83, 117,656,602.90 and 55,868,453.89 is: 77,119,432.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,235,228.83 : 117,656,602.90 = 55,868,453.89 : x
  2. Step 2: Convert to fraction form
    85,235,228.83/117,656,602.90 = 55,868,453.89/x
  3. Step 3: Cross multiply
    85,235,228.83x = 117,656,602.90 × 55,868,453.89
  4. Step 4: Simplify right side
    85,235,228.83x = 6,573,292,493,972,691
  5. Step 5: Solve for x
    x = 6,573,292,493,972,691/85,235,228.83
  6. Step 6: Final answer
    x = 77,119,432.71

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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.