Home / 21,902,080.38-30,215,738.16-12,607,426.50

Finding the Fourth Proportional to 21,902,080.38, 30,215,738.16 and 12,607,426.50

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Solution

The fourth proportional to 21,902,080.38, 30,215,738.16 and 12,607,426.50 is: 17,392,991.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,902,080.38 : 30,215,738.16 = 12,607,426.50 : x
  2. Step 2: Convert to fraction form
    21,902,080.38/30,215,738.16 = 12,607,426.50/x
  3. Step 3: Cross multiply
    21,902,080.38x = 30,215,738.16 × 12,607,426.50
  4. Step 4: Simplify right side
    21,902,080.38x = 380,942,697,995,445.25
  5. Step 5: Solve for x
    x = 380,942,697,995,445.25/21,902,080.38
  6. Step 6: Final answer
    x = 17,392,991.51

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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.