Home / 81,490,672.40-122,236,008.60-26,911,681.70

Finding the Fourth Proportional to 81,490,672.40, 122,236,008.60 and 26,911,681.70

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Solution

The fourth proportional to 81,490,672.40, 122,236,008.60 and 26,911,681.70 is: 40,367,522.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,490,672.40 : 122,236,008.60 = 26,911,681.70 : x
  2. Step 2: Convert to fraction form
    81,490,672.40/122,236,008.60 = 26,911,681.70/x
  3. Step 3: Cross multiply
    81,490,672.40x = 122,236,008.60 × 26,911,681.70
  4. Step 4: Simplify right side
    81,490,672.40x = 3,289,576,555,721,662.50
  5. Step 5: Solve for x
    x = 3,289,576,555,721,662.50/81,490,672.40
  6. Step 6: Final answer
    x = 40,367,522.55

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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.