Home / 812,966,155.75-1,121,893,294.85-460,542,146.46

Finding the Fourth Proportional to 812,966,155.75, 1,121,893,294.85 and 460,542,146.46

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Solution

The fourth proportional to 812,966,155.75, 1,121,893,294.85 and 460,542,146.46 is: 635,548,162.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,966,155.75 : 1,121,893,294.85 = 460,542,146.46 : x
  2. Step 2: Convert to fraction form
    812,966,155.75/1,121,893,294.85 = 460,542,146.46/x
  3. Step 3: Cross multiply
    812,966,155.75x = 1,121,893,294.85 × 460,542,146.46
  4. Step 4: Simplify right side
    812,966,155.75x = 516,679,146,109,300,608
  5. Step 5: Solve for x
    x = 516,679,146,109,300,608/812,966,155.75
  6. Step 6: Final answer
    x = 635,548,162.07

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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.