Home / 378,220,731.89-567,503,478.55-194,117,493.15

Finding the Fourth Proportional to 378,220,731.89, 567,503,478.55 and 194,117,493.15

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Solution

The fourth proportional to 378,220,731.89, 567,503,478.55 and 194,117,493.15 is: 291,264,712.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,220,731.89 : 567,503,478.55 = 194,117,493.15 : x
  2. Step 2: Convert to fraction form
    378,220,731.89/567,503,478.55 = 194,117,493.15/x
  3. Step 3: Cross multiply
    378,220,731.89x = 567,503,478.55 × 194,117,493.15
  4. Step 4: Simplify right side
    378,220,731.89x = 110,162,352,610,642,288
  5. Step 5: Solve for x
    x = 110,162,352,610,642,288/378,220,731.89
  6. Step 6: Final answer
    x = 291,264,712.17

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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.