Home / 15,419,794,339.71-21,274,229,588.03-9,313,865,409.92

Finding the Fourth Proportional to 15,419,794,339.71, 21,274,229,588.03 and 9,313,865,409.92

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Solution

The fourth proportional to 15,419,794,339.71, 21,274,229,588.03 and 9,313,865,409.92 is: 12,850,061,856.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419,794,339.71 : 21,274,229,588.03 = 9,313,865,409.92 : x
  2. Step 2: Convert to fraction form
    15,419,794,339.71/21,274,229,588.03 = 9,313,865,409.92/x
  3. Step 3: Cross multiply
    15,419,794,339.71x = 21,274,229,588.03 × 9,313,865,409.92
  4. Step 4: Simplify right side
    15,419,794,339.71x = 198,145,311,082,533,552,128
  5. Step 5: Solve for x
    x = 198,145,311,082,533,552,128/15,419,794,339.71
  6. Step 6: Final answer
    x = 12,850,061,856.68

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1.5x scale

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.