Home / 411,721,823.55-568,185,988.94-223,558,048.20

Finding the Fourth Proportional to 411,721,823.55, 568,185,988.94 and 223,558,048.20

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Solution

The fourth proportional to 411,721,823.55, 568,185,988.94 and 223,558,048.20 is: 308,515,467.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,721,823.55 : 568,185,988.94 = 223,558,048.20 : x
  2. Step 2: Convert to fraction form
    411,721,823.55/568,185,988.94 = 223,558,048.20/x
  3. Step 3: Cross multiply
    411,721,823.55x = 568,185,988.94 × 223,558,048.20
  4. Step 4: Simplify right side
    411,721,823.55x = 127,022,550,702,013,200
  5. Step 5: Solve for x
    x = 127,022,550,702,013,200/411,721,823.55
  6. Step 6: Final answer
    x = 308,515,467.09

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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.