Home / 375,017,679.80-517,475,320.15-216,253,666.65

Finding the Fourth Proportional to 375,017,679.80, 517,475,320.15 and 216,253,666.65

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Solution

The fourth proportional to 375,017,679.80, 517,475,320.15 and 216,253,666.65 is: 298,401,759.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,017,679.80 : 517,475,320.15 = 216,253,666.65 : x
  2. Step 2: Convert to fraction form
    375,017,679.80/517,475,320.15 = 216,253,666.65/x
  3. Step 3: Cross multiply
    375,017,679.80x = 517,475,320.15 × 216,253,666.65
  4. Step 4: Simplify right side
    375,017,679.80x = 111,905,935,385,130,912
  5. Step 5: Solve for x
    x = 111,905,935,385,130,912/375,017,679.80
  6. Step 6: Final answer
    x = 298,401,759.21

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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.