Home / 313,377,886-432,005,691.90-218,999,020.60

Finding the Fourth Proportional to 313,377,886, 432,005,691.90 and 218,999,020.60

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Solution

The fourth proportional to 313,377,886, 432,005,691.90 and 218,999,020.60 is: 301,900,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,377,886 : 432,005,691.90 = 218,999,020.60 : x
  2. Step 2: Convert to fraction form
    313,377,886/432,005,691.90 = 218,999,020.60/x
  3. Step 3: Cross multiply
    313,377,886x = 432,005,691.90 × 218,999,020.60
  4. Step 4: Simplify right side
    313,377,886x = 94,608,823,419,725,344
  5. Step 5: Solve for x
    x = 94,608,823,419,725,344/313,377,886
  6. Step 6: Final answer
    x = 301,900,126.48

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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.