Home / 885,146,961.45-1,327,720,442.18-425,981,937.45

Finding the Fourth Proportional to 885,146,961.45, 1,327,720,442.18 and 425,981,937.45

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Solution

The fourth proportional to 885,146,961.45, 1,327,720,442.18 and 425,981,937.45 is: 638,972,906.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,146,961.45 : 1,327,720,442.18 = 425,981,937.45 : x
  2. Step 2: Convert to fraction form
    885,146,961.45/1,327,720,442.18 = 425,981,937.45/x
  3. Step 3: Cross multiply
    885,146,961.45x = 1,327,720,442.18 × 425,981,937.45
  4. Step 4: Simplify right side
    885,146,961.45x = 565,584,926,349,677,184
  5. Step 5: Solve for x
    x = 565,584,926,349,677,184/885,146,961.45
  6. Step 6: Final answer
    x = 638,972,906.18

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Double scale
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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.