Home / 72,204,939.03-99,642,230.73-39,165,105.45

Finding the Fourth Proportional to 72,204,939.03, 99,642,230.73 and 39,165,105.45

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Solution

The fourth proportional to 72,204,939.03, 99,642,230.73 and 39,165,105.45 is: 54,047,528.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,204,939.03 : 99,642,230.73 = 39,165,105.45 : x
  2. Step 2: Convert to fraction form
    72,204,939.03/99,642,230.73 = 39,165,105.45/x
  3. Step 3: Cross multiply
    72,204,939.03x = 99,642,230.73 × 39,165,105.45
  4. Step 4: Simplify right side
    72,204,939.03x = 3,902,498,473,813,681
  5. Step 5: Solve for x
    x = 3,902,498,473,813,681/72,204,939.03
  6. Step 6: Final answer
    x = 54,047,528.14

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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.