Home / 20,833,422.90-31,250,134.35-12,771,266.10

Finding the Fourth Proportional to 20,833,422.90, 31,250,134.35 and 12,771,266.10

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Solution

The fourth proportional to 20,833,422.90, 31,250,134.35 and 12,771,266.10 is: 19,156,899.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833,422.90 : 31,250,134.35 = 12,771,266.10 : x
  2. Step 2: Convert to fraction form
    20,833,422.90/31,250,134.35 = 12,771,266.10/x
  3. Step 3: Cross multiply
    20,833,422.90x = 31,250,134.35 × 12,771,266.10
  4. Step 4: Simplify right side
    20,833,422.90x = 399,103,781,444,600.56
  5. Step 5: Solve for x
    x = 399,103,781,444,600.56/20,833,422.90
  6. Step 6: Final answer
    x = 19,156,899.15

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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.