Home / 28,931,405.60-43,446,874.80-20,471,117.60

Finding the Fourth Proportional to 28,931,405.60, 43,446,874.80 and 20,471,117.60

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Solution

The fourth proportional to 28,931,405.60, 43,446,874.80 and 20,471,117.60 is: 30,741,889.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931,405.60 : 43,446,874.80 = 20,471,117.60 : x
  2. Step 2: Convert to fraction form
    28,931,405.60/43,446,874.80 = 20,471,117.60/x
  3. Step 3: Cross multiply
    28,931,405.60x = 43,446,874.80 × 20,471,117.60
  4. Step 4: Simplify right side
    28,931,405.60x = 889,406,083,383,276.50
  5. Step 5: Solve for x
    x = 889,406,083,383,276.50/28,931,405.60
  6. Step 6: Final answer
    x = 30,741,889.82

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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.