Home / 564,398,466.21-778,694,165.75-326,156,856.61

Finding the Fourth Proportional to 564,398,466.21, 778,694,165.75 and 326,156,856.61

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Solution

The fourth proportional to 564,398,466.21, 778,694,165.75 and 326,156,856.61 is: 449,994,917.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,398,466.21 : 778,694,165.75 = 326,156,856.61 : x
  2. Step 2: Convert to fraction form
    564,398,466.21/778,694,165.75 = 326,156,856.61/x
  3. Step 3: Cross multiply
    564,398,466.21x = 778,694,165.75 × 326,156,856.61
  4. Step 4: Simplify right side
    564,398,466.21x = 253,976,441,361,566,336
  5. Step 5: Solve for x
    x = 253,976,441,361,566,336/564,398,466.21
  6. Step 6: Final answer
    x = 449,994,917.72

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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.