Home / 78,654,174.61-108,549,223.32-43,378,879.18

Finding the Fourth Proportional to 78,654,174.61, 108,549,223.32 and 43,378,879.18

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Solution

The fourth proportional to 78,654,174.61, 108,549,223.32 and 43,378,879.18 is: 59,866,417.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,654,174.61 : 108,549,223.32 = 43,378,879.18 : x
  2. Step 2: Convert to fraction form
    78,654,174.61/108,549,223.32 = 43,378,879.18/x
  3. Step 3: Cross multiply
    78,654,174.61x = 108,549,223.32 × 43,378,879.18
  4. Step 4: Simplify right side
    78,654,174.61x = 4,708,743,643,481,118
  5. Step 5: Solve for x
    x = 4,708,743,643,481,118/78,654,174.61
  6. Step 6: Final answer
    x = 59,866,417.35

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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.