Home / 900,383,393.96-1,350,643,205.91-278,661,508.18

Finding the Fourth Proportional to 900,383,393.96, 1,350,643,205.91 and 278,661,508.18

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Solution

The fourth proportional to 900,383,393.96, 1,350,643,205.91 and 278,661,508.18 is: 418,013,343.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,383,393.96 : 1,350,643,205.91 = 278,661,508.18 : x
  2. Step 2: Convert to fraction form
    900,383,393.96/1,350,643,205.91 = 278,661,508.18/x
  3. Step 3: Cross multiply
    900,383,393.96x = 1,350,643,205.91 × 278,661,508.18
  4. Step 4: Simplify right side
    900,383,393.96x = 376,372,272,771,950,912
  5. Step 5: Solve for x
    x = 376,372,272,771,950,912/900,383,393.96
  6. Step 6: Final answer
    x = 418,013,343.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.