Home / 411,721,821.05-568,185,985.46-223,558,045.70

Finding the Fourth Proportional to 411,721,821.05, 568,185,985.46 and 223,558,045.70

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Solution

The fourth proportional to 411,721,821.05, 568,185,985.46 and 223,558,045.70 is: 308,515,463.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,721,821.05 : 568,185,985.46 = 223,558,045.70 : x
  2. Step 2: Convert to fraction form
    411,721,821.05/568,185,985.46 = 223,558,045.70/x
  3. Step 3: Cross multiply
    411,721,821.05x = 568,185,985.46 × 223,558,045.70
  4. Step 4: Simplify right side
    411,721,821.05x = 127,022,548,501,284,176
  5. Step 5: Solve for x
    x = 127,022,548,501,284,176/411,721,821.05
  6. Step 6: Final answer
    x = 308,515,463.62

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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.