Home / 10,642,666.68-15,967,965.96-6,385,889.88

Finding the Fourth Proportional to 10,642,666.68, 15,967,965.96 and 6,385,889.88

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Solution

The fourth proportional to 10,642,666.68, 15,967,965.96 and 6,385,889.88 is: 9,581,214.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642,666.68 : 15,967,965.96 = 6,385,889.88 : x
  2. Step 2: Convert to fraction form
    10,642,666.68/15,967,965.96 = 6,385,889.88/x
  3. Step 3: Cross multiply
    10,642,666.68x = 15,967,965.96 × 6,385,889.88
  4. Step 4: Simplify right side
    10,642,666.68x = 101,969,672,228,148.48
  5. Step 5: Solve for x
    x = 101,969,672,228,148.48/10,642,666.68
  6. Step 6: Final answer
    x = 9,581,214.49

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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.