Home / 908,305,976.38-1,253,462,727.67-490,618,260.82

Finding the Fourth Proportional to 908,305,976.38, 1,253,462,727.67 and 490,618,260.82

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Solution

The fourth proportional to 908,305,976.38, 1,253,462,727.67 and 490,618,260.82 is: 677,053,459.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,305,976.38 : 1,253,462,727.67 = 490,618,260.82 : x
  2. Step 2: Convert to fraction form
    908,305,976.38/1,253,462,727.67 = 490,618,260.82/x
  3. Step 3: Cross multiply
    908,305,976.38x = 1,253,462,727.67 × 490,618,260.82
  4. Step 4: Simplify right side
    908,305,976.38x = 614,971,703,445,881,472
  5. Step 5: Solve for x
    x = 614,971,703,445,881,472/908,305,976.38
  6. Step 6: Final answer
    x = 677,053,459.34

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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.