Home / 15,419,794,342.63-21,274,229,592.06-9,313,865,412.84

Finding the Fourth Proportional to 15,419,794,342.63, 21,274,229,592.06 and 9,313,865,412.84

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Solution

The fourth proportional to 15,419,794,342.63, 21,274,229,592.06 and 9,313,865,412.84 is: 12,850,061,860.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419,794,342.63 : 21,274,229,592.06 = 9,313,865,412.84 : x
  2. Step 2: Convert to fraction form
    15,419,794,342.63/21,274,229,592.06 = 9,313,865,412.84/x
  3. Step 3: Cross multiply
    15,419,794,342.63x = 21,274,229,592.06 × 9,313,865,412.84
  4. Step 4: Simplify right side
    15,419,794,342.63x = 198,145,311,182,376,697,856
  5. Step 5: Solve for x
    x = 198,145,311,182,376,697,856/15,419,794,342.63
  6. Step 6: Final answer
    x = 12,850,061,860.72

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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.