Home / 78,567,117.48-108,431,078.96-43,288,469.21

Finding the Fourth Proportional to 78,567,117.48, 108,431,078.96 and 43,288,469.21

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Solution

The fourth proportional to 78,567,117.48, 108,431,078.96 and 43,288,469.21 is: 59,742,747.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,567,117.48 : 108,431,078.96 = 43,288,469.21 : x
  2. Step 2: Convert to fraction form
    78,567,117.48/108,431,078.96 = 43,288,469.21/x
  3. Step 3: Cross multiply
    78,567,117.48x = 108,431,078.96 × 43,288,469.21
  4. Step 4: Simplify right side
    78,567,117.48x = 4,693,815,423,346,338
  5. Step 5: Solve for x
    x = 4,693,815,423,346,338/78,567,117.48
  6. Step 6: Final answer
    x = 59,742,747.02

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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.