Home / 721,876,027.05-996,160,219.52-408,675,210.30

Finding the Fourth Proportional to 721,876,027.05, 996,160,219.52 and 408,675,210.30

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Solution

The fourth proportional to 721,876,027.05, 996,160,219.52 and 408,675,210.30 is: 563,955,543.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,876,027.05 : 996,160,219.52 = 408,675,210.30 : x
  2. Step 2: Convert to fraction form
    721,876,027.05/996,160,219.52 = 408,675,210.30/x
  3. Step 3: Cross multiply
    721,876,027.05x = 996,160,219.52 × 408,675,210.30
  4. Step 4: Simplify right side
    721,876,027.05x = 407,105,987,202,786,816
  5. Step 5: Solve for x
    x = 407,105,987,202,786,816/721,876,027.05
  6. Step 6: Final answer
    x = 563,955,543.54

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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.