Home / 144,654,867.86-199,623,565.94-78,575,418.59

Finding the Fourth Proportional to 144,654,867.86, 199,623,565.94 and 78,575,418.59

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Solution

The fourth proportional to 144,654,867.86, 199,623,565.94 and 78,575,418.59 is: 108,433,995.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,654,867.86 : 199,623,565.94 = 78,575,418.59 : x
  2. Step 2: Convert to fraction form
    144,654,867.86/199,623,565.94 = 78,575,418.59/x
  3. Step 3: Cross multiply
    144,654,867.86x = 199,623,565.94 × 78,575,418.59
  4. Step 4: Simplify right side
    144,654,867.86x = 15,685,505,252,772,970
  5. Step 5: Solve for x
    x = 15,685,505,252,772,970/144,654,867.86
  6. Step 6: Final answer
    x = 108,433,995.24

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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.