Home / 640,597,276.80-960,895,915.20-296,223,508.80

Finding the Fourth Proportional to 640,597,276.80, 960,895,915.20 and 296,223,508.80

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Solution

The fourth proportional to 640,597,276.80, 960,895,915.20 and 296,223,508.80 is: 444,335,263.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,597,276.80 : 960,895,915.20 = 296,223,508.80 : x
  2. Step 2: Convert to fraction form
    640,597,276.80/960,895,915.20 = 296,223,508.80/x
  3. Step 3: Cross multiply
    640,597,276.80x = 960,895,915.20 × 296,223,508.80
  4. Step 4: Simplify right side
    640,597,276.80x = 284,639,959,592,131,264
  5. Step 5: Solve for x
    x = 284,639,959,592,131,264/640,597,276.80
  6. Step 6: Final answer
    x = 444,335,263.20

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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.