Home / 268,878,981.70-403,318,472.55-266,328,064.90

Finding the Fourth Proportional to 268,878,981.70, 403,318,472.55 and 266,328,064.90

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Solution

The fourth proportional to 268,878,981.70, 403,318,472.55 and 266,328,064.90 is: 399,492,097.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,878,981.70 : 403,318,472.55 = 266,328,064.90 : x
  2. Step 2: Convert to fraction form
    268,878,981.70/403,318,472.55 = 266,328,064.90/x
  3. Step 3: Cross multiply
    268,878,981.70x = 403,318,472.55 × 266,328,064.90
  4. Step 4: Simplify right side
    268,878,981.70x = 107,415,028,332,665,280
  5. Step 5: Solve for x
    x = 107,415,028,332,665,280/268,878,981.70
  6. Step 6: Final answer
    x = 399,492,097.35

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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.