Home / 266,320,428.80-399,480,643.20-74,844,204.80

Finding the Fourth Proportional to 266,320,428.80, 399,480,643.20 and 74,844,204.80

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Solution

The fourth proportional to 266,320,428.80, 399,480,643.20 and 74,844,204.80 is: 112,266,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,320,428.80 : 399,480,643.20 = 74,844,204.80 : x
  2. Step 2: Convert to fraction form
    266,320,428.80/399,480,643.20 = 74,844,204.80/x
  3. Step 3: Cross multiply
    266,320,428.80x = 399,480,643.20 × 74,844,204.80
  4. Step 4: Simplify right side
    266,320,428.80x = 29,898,811,073,296,524
  5. Step 5: Solve for x
    x = 29,898,811,073,296,524/266,320,428.80
  6. Step 6: Final answer
    x = 112,266,307.20

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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.