Home / 268,878,982.70-403,318,474.05-266,328,065.90

Finding the Fourth Proportional to 268,878,982.70, 403,318,474.05 and 266,328,065.90

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Solution

The fourth proportional to 268,878,982.70, 403,318,474.05 and 266,328,065.90 is: 399,492,098.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,878,982.70 : 403,318,474.05 = 266,328,065.90 : x
  2. Step 2: Convert to fraction form
    268,878,982.70/403,318,474.05 = 266,328,065.90/x
  3. Step 3: Cross multiply
    268,878,982.70x = 403,318,474.05 × 266,328,065.90
  4. Step 4: Simplify right side
    268,878,982.70x = 107,415,029,135,475,840
  5. Step 5: Solve for x
    x = 107,415,029,135,475,840/268,878,982.70
  6. Step 6: Final answer
    x = 399,492,098.85

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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.