Home / 268,890,218.70-403,335,328.05-266,339,301.90

Finding the Fourth Proportional to 268,890,218.70, 403,335,328.05 and 266,339,301.90

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Solution

The fourth proportional to 268,890,218.70, 403,335,328.05 and 266,339,301.90 is: 399,508,952.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,890,218.70 : 403,335,328.05 = 266,339,301.90 : x
  2. Step 2: Convert to fraction form
    268,890,218.70/403,335,328.05 = 266,339,301.90/x
  3. Step 3: Cross multiply
    268,890,218.70x = 403,335,328.05 × 266,339,301.90
  4. Step 4: Simplify right side
    268,890,218.70x = 107,424,049,704,444,496
  5. Step 5: Solve for x
    x = 107,424,049,704,444,496/268,890,218.70
  6. Step 6: Final answer
    x = 399,508,952.85

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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.