Home / 411,722,928.72-568,187,513.92-223,559,152.69

Finding the Fourth Proportional to 411,722,928.72, 568,187,513.92 and 223,559,152.69

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Solution

The fourth proportional to 411,722,928.72, 568,187,513.92 and 223,559,152.69 is: 308,516,991.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,722,928.72 : 568,187,513.92 = 223,559,152.69 : x
  2. Step 2: Convert to fraction form
    411,722,928.72/568,187,513.92 = 223,559,152.69/x
  3. Step 3: Cross multiply
    411,722,928.72x = 568,187,513.92 × 223,559,152.69
  4. Step 4: Simplify right side
    411,722,928.72x = 127,023,519,179,657,872
  5. Step 5: Solve for x
    x = 127,023,519,179,657,872/411,722,928.72
  6. Step 6: Final answer
    x = 308,516,991.21

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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.