Home / 20,786,646.80-31,144,540.80-17,739,718.40

Finding the Fourth Proportional to 20,786,646.80, 31,144,540.80 and 17,739,718.40

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Solution

The fourth proportional to 20,786,646.80, 31,144,540.80 and 17,739,718.40 is: 26,579,341.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,786,646.80 : 31,144,540.80 = 17,739,718.40 : x
  2. Step 2: Convert to fraction form
    20,786,646.80/31,144,540.80 = 17,739,718.40/x
  3. Step 3: Cross multiply
    20,786,646.80x = 31,144,540.80 × 17,739,718.40
  4. Step 4: Simplify right side
    20,786,646.80x = 552,495,383,489,310.69
  5. Step 5: Solve for x
    x = 552,495,383,489,310.69/20,786,646.80
  6. Step 6: Final answer
    x = 26,579,341.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.