Home / 12,900,818.40-17,803,132.31-7,099,600.14

Finding the Fourth Proportional to 12,900,818.40, 17,803,132.31 and 7,099,600.14

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Solution

The fourth proportional to 12,900,818.40, 17,803,132.31 and 7,099,600.14 is: 9,797,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900,818.40 : 17,803,132.31 = 7,099,600.14 : x
  2. Step 2: Convert to fraction form
    12,900,818.40/17,803,132.31 = 7,099,600.14/x
  3. Step 3: Cross multiply
    12,900,818.40x = 17,803,132.31 × 7,099,600.14
  4. Step 4: Simplify right side
    12,900,818.40x = 126,395,120,605,016.52
  5. Step 5: Solve for x
    x = 126,395,120,605,016.52/12,900,818.40
  6. Step 6: Final answer
    x = 9,797,449.80

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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.