Home / 72,260,272.13-99,717,924.31-39,219,812.20

Finding the Fourth Proportional to 72,260,272.13, 99,717,924.31 and 39,219,812.20

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Solution

The fourth proportional to 72,260,272.13, 99,717,924.31 and 39,219,812.20 is: 54,122,661.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,260,272.13 : 99,717,924.31 = 39,219,812.20 : x
  2. Step 2: Convert to fraction form
    72,260,272.13/99,717,924.31 = 39,219,812.20/x
  3. Step 3: Cross multiply
    72,260,272.13x = 99,717,924.31 × 39,219,812.20
  4. Step 4: Simplify right side
    72,260,272.13x = 3,910,918,263,717,326
  5. Step 5: Solve for x
    x = 3,910,918,263,717,326/72,260,272.13
  6. Step 6: Final answer
    x = 54,122,661.71

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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.