Home / 78,294,279.31-117,456,543.08-29,768,360.09

Finding the Fourth Proportional to 78,294,279.31, 117,456,543.08 and 29,768,360.09

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Solution

The fourth proportional to 78,294,279.31, 117,456,543.08 and 29,768,360.09 is: 44,658,290.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,294,279.31 : 117,456,543.08 = 29,768,360.09 : x
  2. Step 2: Convert to fraction form
    78,294,279.31/117,456,543.08 = 29,768,360.09/x
  3. Step 3: Cross multiply
    78,294,279.31x = 117,456,543.08 × 29,768,360.09
  4. Step 4: Simplify right side
    78,294,279.31x = 3,496,488,668,707,544.50
  5. Step 5: Solve for x
    x = 3,496,488,668,707,544.50/78,294,279.31
  6. Step 6: Final answer
    x = 44,658,290.49

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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.