Home / 268,878,948.20-403,318,422.30-266,328,031.40

Finding the Fourth Proportional to 268,878,948.20, 403,318,422.30 and 266,328,031.40

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Solution

The fourth proportional to 268,878,948.20, 403,318,422.30 and 266,328,031.40 is: 399,492,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,878,948.20 : 403,318,422.30 = 266,328,031.40 : x
  2. Step 2: Convert to fraction form
    268,878,948.20/403,318,422.30 = 266,328,031.40/x
  3. Step 3: Cross multiply
    268,878,948.20x = 403,318,422.30 × 266,328,031.40
  4. Step 4: Simplify right side
    268,878,948.20x = 107,415,001,438,512,864
  5. Step 5: Solve for x
    x = 107,415,001,438,512,864/268,878,948.20
  6. Step 6: Final answer
    x = 399,492,047.10

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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.