Home / 899,981,289.76-1,242,022,402.68-503,480,626.24

Finding the Fourth Proportional to 899,981,289.76, 1,242,022,402.68 and 503,480,626.24

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Solution

The fourth proportional to 899,981,289.76, 1,242,022,402.68 and 503,480,626.24 is: 694,830,241.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,981,289.76 : 1,242,022,402.68 = 503,480,626.24 : x
  2. Step 2: Convert to fraction form
    899,981,289.76/1,242,022,402.68 = 503,480,626.24/x
  3. Step 3: Cross multiply
    899,981,289.76x = 1,242,022,402.68 × 503,480,626.24
  4. Step 4: Simplify right side
    899,981,289.76x = 625,334,217,105,435,904
  5. Step 5: Solve for x
    x = 625,334,217,105,435,904/899,981,289.76
  6. Step 6: Final answer
    x = 694,830,241.72

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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.