Home / 10,306,438.76-15,390,253.82-8,416,928.36

Finding the Fourth Proportional to 10,306,438.76, 15,390,253.82 and 8,416,928.36

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Solution

The fourth proportional to 10,306,438.76, 15,390,253.82 and 8,416,928.36 is: 12,568,712.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306,438.76 : 15,390,253.82 = 8,416,928.36 : x
  2. Step 2: Convert to fraction form
    10,306,438.76/15,390,253.82 = 8,416,928.36/x
  3. Step 3: Cross multiply
    10,306,438.76x = 15,390,253.82 × 8,416,928.36
  4. Step 4: Simplify right side
    10,306,438.76x = 129,538,663,845,156.33
  5. Step 5: Solve for x
    x = 129,538,663,845,156.33/10,306,438.76
  6. Step 6: Final answer
    x = 12,568,712.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.