Home / 885,146,931.20-1,327,720,396.80-425,981,907.20

Finding the Fourth Proportional to 885,146,931.20, 1,327,720,396.80 and 425,981,907.20

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Solution

The fourth proportional to 885,146,931.20, 1,327,720,396.80 and 425,981,907.20 is: 638,972,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,146,931.20 : 1,327,720,396.80 = 425,981,907.20 : x
  2. Step 2: Convert to fraction form
    885,146,931.20/1,327,720,396.80 = 425,981,907.20/x
  3. Step 3: Cross multiply
    885,146,931.20x = 1,327,720,396.80 × 425,981,907.20
  4. Step 4: Simplify right side
    885,146,931.20x = 565,584,866,857,204,736
  5. Step 5: Solve for x
    x = 565,584,866,857,204,736/885,146,931.20
  6. Step 6: Final answer
    x = 638,972,860.80

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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.