Home / 20,885,410.24-28,823,689.92-12,186,385.36

Finding the Fourth Proportional to 20,885,410.24, 28,823,689.92 and 12,186,385.36

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Solution

The fourth proportional to 20,885,410.24, 28,823,689.92 and 12,186,385.36 is: 16,818,275.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,410.24 : 28,823,689.92 = 12,186,385.36 : x
  2. Step 2: Convert to fraction form
    20,885,410.24/28,823,689.92 = 12,186,385.36/x
  3. Step 3: Cross multiply
    20,885,410.24x = 28,823,689.92 × 12,186,385.36
  4. Step 4: Simplify right side
    20,885,410.24x = 351,256,592,862,267.56
  5. Step 5: Solve for x
    x = 351,256,592,862,267.56/20,885,410.24
  6. Step 6: Final answer
    x = 16,818,275.96

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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.