Home / 13,419,084,105.92-18,518,392,189.28-7,397,457,355.84

Finding the Fourth Proportional to 13,419,084,105.92, 18,518,392,189.28 and 7,397,457,355.84

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Solution

The fourth proportional to 13,419,084,105.92, 18,518,392,189.28 and 7,397,457,355.84 is: 10,208,522,089.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,084,105.92 : 18,518,392,189.28 = 7,397,457,355.84 : x
  2. Step 2: Convert to fraction form
    13,419,084,105.92/18,518,392,189.28 = 7,397,457,355.84/x
  3. Step 3: Cross multiply
    13,419,084,105.92x = 18,518,392,189.28 × 7,397,457,355.84
  4. Step 4: Simplify right side
    13,419,084,105.92x = 136,989,016,518,919,323,648
  5. Step 5: Solve for x
    x = 136,989,016,518,919,323,648/13,419,084,105.92
  6. Step 6: Final answer
    x = 10,208,522,089.71

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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.