Home / 12,443,486.80-17,172,008.20-6,720,350.80

Finding the Fourth Proportional to 12,443,486.80, 17,172,008.20 and 6,720,350.80

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Solution

The fourth proportional to 12,443,486.80, 17,172,008.20 and 6,720,350.80 is: 9,274,082.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,443,486.80 : 17,172,008.20 = 6,720,350.80 : x
  2. Step 2: Convert to fraction form
    12,443,486.80/17,172,008.20 = 6,720,350.80/x
  3. Step 3: Cross multiply
    12,443,486.80x = 17,172,008.20 × 6,720,350.80
  4. Step 4: Simplify right side
    12,443,486.80x = 115,401,919,044,476.55
  5. Step 5: Solve for x
    x = 115,401,919,044,476.55/12,443,486.80
  6. Step 6: Final answer
    x = 9,274,082.17

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1.5x scale

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.