Home / 145,643,980.65-200,991,656.14-79,568,758.59

Finding the Fourth Proportional to 145,643,980.65, 200,991,656.14 and 79,568,758.59

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Solution

The fourth proportional to 145,643,980.65, 200,991,656.14 and 79,568,758.59 is: 109,806,505.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,643,980.65 : 200,991,656.14 = 79,568,758.59 : x
  2. Step 2: Convert to fraction form
    145,643,980.65/200,991,656.14 = 79,568,758.59/x
  3. Step 3: Cross multiply
    145,643,980.65x = 200,991,656.14 × 79,568,758.59
  4. Step 4: Simplify right side
    145,643,980.65x = 15,992,656,566,007,950
  5. Step 5: Solve for x
    x = 15,992,656,566,007,950/145,643,980.65
  6. Step 6: Final answer
    x = 109,806,505.53

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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.