Home / 357,438,469.68-493,305,029.55-216,387,407.16

Finding the Fourth Proportional to 357,438,469.68, 493,305,029.55 and 216,387,407.16

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Solution

The fourth proportional to 357,438,469.68, 493,305,029.55 and 216,387,407.16 is: 298,638,801.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,438,469.68 : 493,305,029.55 = 216,387,407.16 : x
  2. Step 2: Convert to fraction form
    357,438,469.68/493,305,029.55 = 216,387,407.16/x
  3. Step 3: Cross multiply
    357,438,469.68x = 493,305,029.55 × 216,387,407.16
  4. Step 4: Simplify right side
    357,438,469.68x = 106,744,996,283,311,680
  5. Step 5: Solve for x
    x = 106,744,996,283,311,680/357,438,469.68
  6. Step 6: Final answer
    x = 298,638,801.75

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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.