Home / 20,417,088.78-28,177,568.06-15,251,482.26

Finding the Fourth Proportional to 20,417,088.78, 28,177,568.06 and 15,251,482.26

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Solution

The fourth proportional to 20,417,088.78, 28,177,568.06 and 15,251,482.26 is: 21,048,528.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417,088.78 : 28,177,568.06 = 15,251,482.26 : x
  2. Step 2: Convert to fraction form
    20,417,088.78/28,177,568.06 = 15,251,482.26/x
  3. Step 3: Cross multiply
    20,417,088.78x = 28,177,568.06 × 15,251,482.26
  4. Step 4: Simplify right side
    20,417,088.78x = 429,749,679,397,032.56
  5. Step 5: Solve for x
    x = 429,749,679,397,032.56/20,417,088.78
  6. Step 6: Final answer
    x = 21,048,528.71

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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.