Home / 472,392,775.70-708,589,163.55-318,204,026.90

Finding the Fourth Proportional to 472,392,775.70, 708,589,163.55 and 318,204,026.90

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Solution

The fourth proportional to 472,392,775.70, 708,589,163.55 and 318,204,026.90 is: 477,306,040.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,775.70 : 708,589,163.55 = 318,204,026.90 : x
  2. Step 2: Convert to fraction form
    472,392,775.70/708,589,163.55 = 318,204,026.90/x
  3. Step 3: Cross multiply
    472,392,775.70x = 708,589,163.55 × 318,204,026.90
  4. Step 4: Simplify right side
    472,392,775.70x = 225,475,925,259,312,672
  5. Step 5: Solve for x
    x = 225,475,925,259,312,672/472,392,775.70
  6. Step 6: Final answer
    x = 477,306,040.35

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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.