Home / 1,122,320,617.32-1,548,856,434.12-620,520,115.80

Finding the Fourth Proportional to 1,122,320,617.32, 1,548,856,434.12 and 620,520,115.80

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Solution

The fourth proportional to 1,122,320,617.32, 1,548,856,434.12 and 620,520,115.80 is: 856,347,606.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,320,617.32 : 1,548,856,434.12 = 620,520,115.80 : x
  2. Step 2: Convert to fraction form
    1,122,320,617.32/1,548,856,434.12 = 620,520,115.80/x
  3. Step 3: Cross multiply
    1,122,320,617.32x = 1,548,856,434.12 × 620,520,115.80
  4. Step 4: Simplify right side
    1,122,320,617.32x = 961,096,573,857,717,376
  5. Step 5: Solve for x
    x = 961,096,573,857,717,376/1,122,320,617.32
  6. Step 6: Final answer
    x = 856,347,606.05

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Double scale
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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.