Home / 28,931,322.10-43,446,749.55-20,471,034.10

Finding the Fourth Proportional to 28,931,322.10, 43,446,749.55 and 20,471,034.10

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Solution

The fourth proportional to 28,931,322.10, 43,446,749.55 and 20,471,034.10 is: 30,741,764.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931,322.10 : 43,446,749.55 = 20,471,034.10 : x
  2. Step 2: Convert to fraction form
    28,931,322.10/43,446,749.55 = 20,471,034.10/x
  3. Step 3: Cross multiply
    28,931,322.10x = 43,446,749.55 × 20,471,034.10
  4. Step 4: Simplify right side
    28,931,322.10x = 889,399,891,572,209.62
  5. Step 5: Solve for x
    x = 889,399,891,572,209.62/28,931,322.10
  6. Step 6: Final answer
    x = 30,741,764.53

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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.