Home / 15,580,928-21,502,793.32-8,611,455.80

Finding the Fourth Proportional to 15,580,928, 21,502,793.32 and 8,611,455.80

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Solution

The fourth proportional to 15,580,928, 21,502,793.32 and 8,611,455.80 is: 11,884,423.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,580,928 : 21,502,793.32 = 8,611,455.80 : x
  2. Step 2: Convert to fraction form
    15,580,928/21,502,793.32 = 8,611,455.80/x
  3. Step 3: Cross multiply
    15,580,928x = 21,502,793.32 × 8,611,455.80
  4. Step 4: Simplify right side
    15,580,928x = 185,170,354,251,715.28
  5. Step 5: Solve for x
    x = 185,170,354,251,715.28/15,580,928
  6. Step 6: Final answer
    x = 11,884,423.97

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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.