Home / 722,195,105.12-996,615,010.32-424,869,480.80

Finding the Fourth Proportional to 722,195,105.12, 996,615,010.32 and 424,869,480.80

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Solution

The fourth proportional to 722,195,105.12, 996,615,010.32 and 424,869,480.80 is: 586,311,509.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,195,105.12 : 996,615,010.32 = 424,869,480.80 : x
  2. Step 2: Convert to fraction form
    722,195,105.12/996,615,010.32 = 424,869,480.80/x
  3. Step 3: Cross multiply
    722,195,105.12x = 996,615,010.32 × 424,869,480.80
  4. Step 4: Simplify right side
    722,195,105.12x = 423,431,301,992,145,088
  5. Step 5: Solve for x
    x = 423,431,301,992,145,088/722,195,105.12
  6. Step 6: Final answer
    x = 586,311,509.16

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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.