Home / 356,156,665.30-491,496,244.72-197,397,038.07

Finding the Fourth Proportional to 356,156,665.30, 491,496,244.72 and 197,397,038.07

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Solution

The fourth proportional to 356,156,665.30, 491,496,244.72 and 197,397,038.07 is: 272,407,938.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,156,665.30 : 491,496,244.72 = 197,397,038.07 : x
  2. Step 2: Convert to fraction form
    356,156,665.30/491,496,244.72 = 197,397,038.07/x
  3. Step 3: Cross multiply
    356,156,665.30x = 491,496,244.72 × 197,397,038.07
  4. Step 4: Simplify right side
    356,156,665.30x = 97,019,902,930,255,872
  5. Step 5: Solve for x
    x = 97,019,902,930,255,872/356,156,665.30
  6. Step 6: Final answer
    x = 272,407,938.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.