Home / 85,042,932-117,395,522.82-57,181,791.30

Finding the Fourth Proportional to 85,042,932, 117,395,522.82 and 57,181,791.30

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Solution

The fourth proportional to 85,042,932, 117,395,522.82 and 57,181,791.30 is: 78,935,263.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,042,932 : 117,395,522.82 = 57,181,791.30 : x
  2. Step 2: Convert to fraction form
    85,042,932/117,395,522.82 = 57,181,791.30/x
  3. Step 3: Cross multiply
    85,042,932x = 117,395,522.82 × 57,181,791.30
  4. Step 4: Simplify right side
    85,042,932x = 6,712,886,285,447,627
  5. Step 5: Solve for x
    x = 6,712,886,285,447,627/85,042,932
  6. Step 6: Final answer
    x = 78,935,263.96

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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.