Home / 10,406,540.70-15,609,811.05-8,493,353.10

Finding the Fourth Proportional to 10,406,540.70, 15,609,811.05 and 8,493,353.10

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Solution

The fourth proportional to 10,406,540.70, 15,609,811.05 and 8,493,353.10 is: 12,740,029.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,406,540.70 : 15,609,811.05 = 8,493,353.10 : x
  2. Step 2: Convert to fraction form
    10,406,540.70/15,609,811.05 = 8,493,353.10/x
  3. Step 3: Cross multiply
    10,406,540.70x = 15,609,811.05 × 8,493,353.10
  4. Step 4: Simplify right side
    10,406,540.70x = 132,579,637,071,931.75
  5. Step 5: Solve for x
    x = 132,579,637,071,931.75/10,406,540.70
  6. Step 6: Final answer
    x = 12,740,029.65

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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.