Home / 375,017,680.80-517,475,321.53-216,253,667.65

Finding the Fourth Proportional to 375,017,680.80, 517,475,321.53 and 216,253,667.65

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Solution

The fourth proportional to 375,017,680.80, 517,475,321.53 and 216,253,667.65 is: 298,401,760.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,017,680.80 : 517,475,321.53 = 216,253,667.65 : x
  2. Step 2: Convert to fraction form
    375,017,680.80/517,475,321.53 = 216,253,667.65/x
  3. Step 3: Cross multiply
    375,017,680.80x = 517,475,321.53 × 216,253,667.65
  4. Step 4: Simplify right side
    375,017,680.80x = 111,905,936,199,225,504
  5. Step 5: Solve for x
    x = 111,905,936,199,225,504/375,017,680.80
  6. Step 6: Final answer
    x = 298,401,760.58

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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.