Home / 21,888,337.36-30,205,902.26-11,965,256.78

Finding the Fourth Proportional to 21,888,337.36, 30,205,902.26 and 11,965,256.78

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Solution

The fourth proportional to 21,888,337.36, 30,205,902.26 and 11,965,256.78 is: 16,512,052.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,888,337.36 : 30,205,902.26 = 11,965,256.78 : x
  2. Step 2: Convert to fraction form
    21,888,337.36/30,205,902.26 = 11,965,256.78/x
  3. Step 3: Cross multiply
    21,888,337.36x = 30,205,902.26 × 11,965,256.78
  4. Step 4: Simplify right side
    21,888,337.36x = 361,421,376,812,482.31
  5. Step 5: Solve for x
    x = 361,421,376,812,482.31/21,888,337.36
  6. Step 6: Final answer
    x = 16,512,052.55

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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.