Home / 812,966,512.07-1,121,893,785.02-460,542,502.33

Finding the Fourth Proportional to 812,966,512.07, 1,121,893,785.02 and 460,542,502.33

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Solution

The fourth proportional to 812,966,512.07, 1,121,893,785.02 and 460,542,502.33 is: 635,548,652.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,966,512.07 : 1,121,893,785.02 = 460,542,502.33 : x
  2. Step 2: Convert to fraction form
    812,966,512.07/1,121,893,785.02 = 460,542,502.33/x
  3. Step 3: Cross multiply
    812,966,512.07x = 1,121,893,785.02 × 460,542,502.33
  4. Step 4: Simplify right side
    812,966,512.07x = 516,679,771,099,932,480
  5. Step 5: Solve for x
    x = 516,679,771,099,932,480/812,966,512.07
  6. Step 6: Final answer
    x = 635,548,652.28

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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.