Home / 17,918,810.20-26,878,215.30-17,620,211.80

Finding the Fourth Proportional to 17,918,810.20, 26,878,215.30 and 17,620,211.80

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Solution

The fourth proportional to 17,918,810.20, 26,878,215.30 and 17,620,211.80 is: 26,430,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,918,810.20 : 26,878,215.30 = 17,620,211.80 : x
  2. Step 2: Convert to fraction form
    17,918,810.20/26,878,215.30 = 17,620,211.80/x
  3. Step 3: Cross multiply
    17,918,810.20x = 26,878,215.30 × 17,620,211.80
  4. Step 4: Simplify right side
    17,918,810.20x = 473,599,846,392,000.56
  5. Step 5: Solve for x
    x = 473,599,846,392,000.56/17,918,810.20
  6. Step 6: Final answer
    x = 26,430,317.70

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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.