Home / 20,671,859.48-28,527,528.85-11,252,921.29

Finding the Fourth Proportional to 20,671,859.48, 28,527,528.85 and 11,252,921.29

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Solution

The fourth proportional to 20,671,859.48, 28,527,528.85 and 11,252,921.29 is: 15,529,228.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671,859.48 : 28,527,528.85 = 11,252,921.29 : x
  2. Step 2: Convert to fraction form
    20,671,859.48/28,527,528.85 = 11,252,921.29/x
  3. Step 3: Cross multiply
    20,671,859.48x = 28,527,528.85 × 11,252,921.29
  4. Step 4: Simplify right side
    20,671,859.48x = 321,018,036,647,803.06
  5. Step 5: Solve for x
    x = 321,018,036,647,803.06/20,671,859.48
  6. Step 6: Final answer
    x = 15,529,228.86

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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.