Home / 72,259,164.78-99,717,756.98-39,219,425.97

Finding the Fourth Proportional to 72,259,164.78, 99,717,756.98 and 39,219,425.97

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Solution

The fourth proportional to 72,259,164.78, 99,717,756.98 and 39,219,425.97 is: 54,122,867.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,259,164.78 : 99,717,756.98 = 39,219,425.97 : x
  2. Step 2: Convert to fraction form
    72,259,164.78/99,717,756.98 = 39,219,425.97/x
  3. Step 3: Cross multiply
    72,259,164.78x = 99,717,756.98 × 39,219,425.97
  4. Step 4: Simplify right side
    72,259,164.78x = 3,910,873,187,575,463.50
  5. Step 5: Solve for x
    x = 3,910,873,187,575,463.50/72,259,164.78
  6. Step 6: Final answer
    x = 54,122,867.31

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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.