Home / 458,217,001.92-686,418,505.84-400,774,134.72

Finding the Fourth Proportional to 458,217,001.92, 686,418,505.84 and 400,774,134.72

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Solution

The fourth proportional to 458,217,001.92, 686,418,505.84 and 400,774,134.72 is: 600,367,907.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,217,001.92 : 686,418,505.84 = 400,774,134.72 : x
  2. Step 2: Convert to fraction form
    458,217,001.92/686,418,505.84 = 400,774,134.72/x
  3. Step 3: Cross multiply
    458,217,001.92x = 686,418,505.84 × 400,774,134.72
  4. Step 4: Simplify right side
    458,217,001.92x = 275,098,782,733,821,312
  5. Step 5: Solve for x
    x = 275,098,782,733,821,312/458,217,001.92
  6. Step 6: Final answer
    x = 600,367,907.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.