Home / 639,578,078.20-959,367,117.30-593,661,575.80

Finding the Fourth Proportional to 639,578,078.20, 959,367,117.30 and 593,661,575.80

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Solution

The fourth proportional to 639,578,078.20, 959,367,117.30 and 593,661,575.80 is: 890,492,363.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,578,078.20 : 959,367,117.30 = 593,661,575.80 : x
  2. Step 2: Convert to fraction form
    639,578,078.20/959,367,117.30 = 593,661,575.80/x
  3. Step 3: Cross multiply
    639,578,078.20x = 959,367,117.30 × 593,661,575.80
  4. Step 4: Simplify right side
    639,578,078.20x = 569,539,394,627,021,376
  5. Step 5: Solve for x
    x = 569,539,394,627,021,376/639,578,078.20
  6. Step 6: Final answer
    x = 890,492,363.70

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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.