Home / 12,999,641.96-17,939,285.34-7,198,299.15

Finding the Fourth Proportional to 12,999,641.96, 17,939,285.34 and 7,198,299.15

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Solution

The fourth proportional to 12,999,641.96, 17,939,285.34 and 7,198,299.15 is: 9,933,530.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,641.96 : 17,939,285.34 = 7,198,299.15 : x
  2. Step 2: Convert to fraction form
    12,999,641.96/17,939,285.34 = 7,198,299.15/x
  3. Step 3: Cross multiply
    12,999,641.96x = 17,939,285.34 × 7,198,299.15
  4. Step 4: Simplify right side
    12,999,641.96x = 129,132,342,335,405.03
  5. Step 5: Solve for x
    x = 129,132,342,335,405.03/12,999,641.96
  6. Step 6: Final answer
    x = 9,933,530.68

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1.5x scale

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.