Home / 72,654,796.80-100,264,087.44-39,615,590.16

Finding the Fourth Proportional to 72,654,796.80, 100,264,087.44 and 39,615,590.16

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Solution

The fourth proportional to 72,654,796.80, 100,264,087.44 and 39,615,590.16 is: 54,669,769.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,654,796.80 : 100,264,087.44 = 39,615,590.16 : x
  2. Step 2: Convert to fraction form
    72,654,796.80/100,264,087.44 = 39,615,590.16/x
  3. Step 3: Cross multiply
    72,654,796.80x = 100,264,087.44 × 39,615,590.16
  4. Step 4: Simplify right side
    72,654,796.80x = 3,972,020,995,789,443
  5. Step 5: Solve for x
    x = 3,972,020,995,789,443/72,654,796.80
  6. Step 6: Final answer
    x = 54,669,769.52

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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.