Home / 20,725,156.89-28,599,421.95-11,432,834.46

Finding the Fourth Proportional to 20,725,156.89, 28,599,421.95 and 11,432,834.46

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Solution

The fourth proportional to 20,725,156.89, 28,599,421.95 and 11,432,834.46 is: 15,776,597.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725,156.89 : 28,599,421.95 = 11,432,834.46 : x
  2. Step 2: Convert to fraction form
    20,725,156.89/28,599,421.95 = 11,432,834.46/x
  3. Step 3: Cross multiply
    20,725,156.89x = 28,599,421.95 × 11,432,834.46
  4. Step 4: Simplify right side
    20,725,156.89x = 326,972,456,806,040.44
  5. Step 5: Solve for x
    x = 326,972,456,806,040.44/20,725,156.89
  6. Step 6: Final answer
    x = 15,776,597.42

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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.