Home / 145,406,353.46-200,661,418.61-79,326,651.47

Finding the Fourth Proportional to 145,406,353.46, 200,661,418.61 and 79,326,651.47

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Solution

The fourth proportional to 145,406,353.46, 200,661,418.61 and 79,326,651.47 is: 109,471,134.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,406,353.46 : 200,661,418.61 = 79,326,651.47 : x
  2. Step 2: Convert to fraction form
    145,406,353.46/200,661,418.61 = 79,326,651.47/x
  3. Step 3: Cross multiply
    145,406,353.46x = 200,661,418.61 × 79,326,651.47
  4. Step 4: Simplify right side
    145,406,353.46x = 15,917,798,416,151,302
  5. Step 5: Solve for x
    x = 15,917,798,416,151,302/145,406,353.46
  6. Step 6: Final answer
    x = 109,471,134.09

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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.