Home / 899,981,287.76-1,242,022,399.92-503,480,624.24

Finding the Fourth Proportional to 899,981,287.76, 1,242,022,399.92 and 503,480,624.24

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Solution

The fourth proportional to 899,981,287.76, 1,242,022,399.92 and 503,480,624.24 is: 694,830,238.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,981,287.76 : 1,242,022,399.92 = 503,480,624.24 : x
  2. Step 2: Convert to fraction form
    899,981,287.76/1,242,022,399.92 = 503,480,624.24/x
  3. Step 3: Cross multiply
    899,981,287.76x = 1,242,022,399.92 × 503,480,624.24
  4. Step 4: Simplify right side
    899,981,287.76x = 625,334,213,231,784,576
  5. Step 5: Solve for x
    x = 625,334,213,231,784,576/899,981,287.76
  6. Step 6: Final answer
    x = 694,830,238.96

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Double scale
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1.5x scale

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.