Home / 431,588,427.12-647,104,297.50-169,299,480.25

Finding the Fourth Proportional to 431,588,427.12, 647,104,297.50 and 169,299,480.25

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Solution

The fourth proportional to 431,588,427.12, 647,104,297.50 and 169,299,480.25 is: 253,840,034.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,588,427.12 : 647,104,297.50 = 169,299,480.25 : x
  2. Step 2: Convert to fraction form
    431,588,427.12/647,104,297.50 = 169,299,480.25/x
  3. Step 3: Cross multiply
    431,588,427.12x = 647,104,297.50 × 169,299,480.25
  4. Step 4: Simplify right side
    431,588,427.12x = 109,554,421,234,291,376
  5. Step 5: Solve for x
    x = 109,554,421,234,291,376/431,588,427.12
  6. Step 6: Final answer
    x = 253,840,034.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.