Home / 266,328,031.70-399,492,047.55-74,851,807.70

Finding the Fourth Proportional to 266,328,031.70, 399,492,047.55 and 74,851,807.70

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Solution

The fourth proportional to 266,328,031.70, 399,492,047.55 and 74,851,807.70 is: 112,277,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,328,031.70 : 399,492,047.55 = 74,851,807.70 : x
  2. Step 2: Convert to fraction form
    266,328,031.70/399,492,047.55 = 74,851,807.70/x
  3. Step 3: Cross multiply
    266,328,031.70x = 399,492,047.55 × 74,851,807.70
  4. Step 4: Simplify right side
    266,328,031.70x = 29,902,701,920,891,860
  5. Step 5: Solve for x
    x = 29,902,701,920,891,860/266,328,031.70
  6. Step 6: Final answer
    x = 112,277,711.55

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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.