Home / 379,315,388.67-523,539,446.09-230,604,910.71

Finding the Fourth Proportional to 379,315,388.67, 523,539,446.09 and 230,604,910.71

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Solution

The fourth proportional to 379,315,388.67, 523,539,446.09 and 230,604,910.71 is: 318,285,972.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,315,388.67 : 523,539,446.09 = 230,604,910.71 : x
  2. Step 2: Convert to fraction form
    379,315,388.67/523,539,446.09 = 230,604,910.71/x
  3. Step 3: Cross multiply
    379,315,388.67x = 523,539,446.09 × 230,604,910.71
  4. Step 4: Simplify right side
    379,315,388.67x = 120,730,767,218,747,312
  5. Step 5: Solve for x
    x = 120,730,767,218,747,312/379,315,388.67
  6. Step 6: Final answer
    x = 318,285,972.11

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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.