Home / 10,306,430.76-15,390,241.89-8,416,920.36

Finding the Fourth Proportional to 10,306,430.76, 15,390,241.89 and 8,416,920.36

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Solution

The fourth proportional to 10,306,430.76, 15,390,241.89 and 8,416,920.36 is: 12,568,700.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306,430.76 : 15,390,241.89 = 8,416,920.36 : x
  2. Step 2: Convert to fraction form
    10,306,430.76/15,390,241.89 = 8,416,920.36/x
  3. Step 3: Cross multiply
    10,306,430.76x = 15,390,241.89 × 8,416,920.36
  4. Step 4: Simplify right side
    10,306,430.76x = 129,538,440,309,265.88
  5. Step 5: Solve for x
    x = 129,538,440,309,265.88/10,306,430.76
  6. Step 6: Final answer
    x = 12,568,700.39

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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.