Home / 12,890,085.23-17,787,962.40-7,088,866.85

Finding the Fourth Proportional to 12,890,085.23, 17,787,962.40 and 7,088,866.85

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Solution

The fourth proportional to 12,890,085.23, 17,787,962.40 and 7,088,866.85 is: 9,782,440.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890,085.23 : 17,787,962.40 = 7,088,866.85 : x
  2. Step 2: Convert to fraction form
    12,890,085.23/17,787,962.40 = 7,088,866.85/x
  3. Step 3: Cross multiply
    12,890,085.23x = 17,787,962.40 × 7,088,866.85
  4. Step 4: Simplify right side
    12,890,085.23x = 126,096,496,986,406.42
  5. Step 5: Solve for x
    x = 126,096,496,986,406.42/12,890,085.23
  6. Step 6: Final answer
    x = 9,782,440.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.