Home / 145,643,972.48-200,991,644.88-79,568,750.42

Finding the Fourth Proportional to 145,643,972.48, 200,991,644.88 and 79,568,750.42

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Solution

The fourth proportional to 145,643,972.48, 200,991,644.88 and 79,568,750.42 is: 109,806,494.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,643,972.48 : 200,991,644.88 = 79,568,750.42 : x
  2. Step 2: Convert to fraction form
    145,643,972.48/200,991,644.88 = 79,568,750.42/x
  3. Step 3: Cross multiply
    145,643,972.48x = 200,991,644.88 × 79,568,750.42
  4. Step 4: Simplify right side
    145,643,972.48x = 15,992,654,027,961,990
  5. Step 5: Solve for x
    x = 15,992,654,027,961,990/145,643,972.48
  6. Step 6: Final answer
    x = 109,806,494.26

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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.