Home / 145,643,979.66-200,991,654.76-79,568,757.60

Finding the Fourth Proportional to 145,643,979.66, 200,991,654.76 and 79,568,757.60

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Solution

The fourth proportional to 145,643,979.66, 200,991,654.76 and 79,568,757.60 is: 109,806,504.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,643,979.66 : 200,991,654.76 = 79,568,757.60 : x
  2. Step 2: Convert to fraction form
    145,643,979.66/200,991,654.76 = 79,568,757.60/x
  3. Step 3: Cross multiply
    145,643,979.66x = 200,991,654.76 × 79,568,757.60
  4. Step 4: Simplify right side
    145,643,979.66x = 15,992,656,257,221,324
  5. Step 5: Solve for x
    x = 15,992,656,257,221,324/145,643,979.66
  6. Step 6: Final answer
    x = 109,806,504.15

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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.