Home / 641,667,629.82-883,443,309.13-500,357,519.82

Finding the Fourth Proportional to 641,667,629.82, 883,443,309.13 and 500,357,519.82

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Solution

The fourth proportional to 641,667,629.82, 883,443,309.13 and 500,357,519.82 is: 688,888,581.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,667,629.82 : 883,443,309.13 = 500,357,519.82 : x
  2. Step 2: Convert to fraction form
    641,667,629.82/883,443,309.13 = 500,357,519.82/x
  3. Step 3: Cross multiply
    641,667,629.82x = 883,443,309.13 × 500,357,519.82
  4. Step 4: Simplify right side
    641,667,629.82x = 442,037,503,052,014,400
  5. Step 5: Solve for x
    x = 442,037,503,052,014,400/641,667,629.82
  6. Step 6: Final answer
    x = 688,888,581.11

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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.