Home / 411,721,821.80-568,185,986.51-223,558,046.45

Finding the Fourth Proportional to 411,721,821.80, 568,185,986.51 and 223,558,046.45

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Solution

The fourth proportional to 411,721,821.80, 568,185,986.51 and 223,558,046.45 is: 308,515,464.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,721,821.80 : 568,185,986.51 = 223,558,046.45 : x
  2. Step 2: Convert to fraction form
    411,721,821.80/568,185,986.51 = 223,558,046.45/x
  3. Step 3: Cross multiply
    411,721,821.80x = 568,185,986.51 × 223,558,046.45
  4. Step 4: Simplify right side
    411,721,821.80x = 127,022,549,160,482,928
  5. Step 5: Solve for x
    x = 127,022,549,160,482,928/411,721,821.80
  6. Step 6: Final answer
    x = 308,515,464.66

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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.