Home / 10,290,327.63-15,421,776.17-5,431,491.88

Finding the Fourth Proportional to 10,290,327.63, 15,421,776.17 and 5,431,491.88

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Solution

The fourth proportional to 10,290,327.63, 15,421,776.17 and 5,431,491.88 is: 8,139,998.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290,327.63 : 15,421,776.17 = 5,431,491.88 : x
  2. Step 2: Convert to fraction form
    10,290,327.63/15,421,776.17 = 5,431,491.88/x
  3. Step 3: Cross multiply
    10,290,327.63x = 15,421,776.17 × 5,431,491.88
  4. Step 4: Simplify right side
    10,290,327.63x = 83,763,252,063,568.08
  5. Step 5: Solve for x
    x = 83,763,252,063,568.08/10,290,327.63
  6. Step 6: Final answer
    x = 8,139,998.56

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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.