Home / 1,255,320,702.30-1,882,981,053.45-393,676,311.90

Finding the Fourth Proportional to 1,255,320,702.30, 1,882,981,053.45 and 393,676,311.90

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Solution

The fourth proportional to 1,255,320,702.30, 1,882,981,053.45 and 393,676,311.90 is: 590,514,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,320,702.30 : 1,882,981,053.45 = 393,676,311.90 : x
  2. Step 2: Convert to fraction form
    1,255,320,702.30/1,882,981,053.45 = 393,676,311.90/x
  3. Step 3: Cross multiply
    1,255,320,702.30x = 1,882,981,053.45 × 393,676,311.90
  4. Step 4: Simplify right side
    1,255,320,702.30x = 741,285,036,499,772,800
  5. Step 5: Solve for x
    x = 741,285,036,499,772,800/1,255,320,702.30
  6. Step 6: Final answer
    x = 590,514,467.85

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Double scale
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Similar ratio
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1.5x scale

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.