Home / 28,339,615.80-42,512,874.30-10,145,719.80

Finding the Fourth Proportional to 28,339,615.80, 42,512,874.30 and 10,145,719.80

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Solution

The fourth proportional to 28,339,615.80, 42,512,874.30 and 10,145,719.80 is: 15,219,815.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,339,615.80 : 42,512,874.30 = 10,145,719.80 : x
  2. Step 2: Convert to fraction form
    28,339,615.80/42,512,874.30 = 10,145,719.80/x
  3. Step 3: Cross multiply
    28,339,615.80x = 42,512,874.30 × 10,145,719.80
  4. Step 4: Simplify right side
    28,339,615.80x = 431,323,710,540,421.12
  5. Step 5: Solve for x
    x = 431,323,710,540,421.12/28,339,615.80
  6. Step 6: Final answer
    x = 15,219,815.03

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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.