Home / 18,683,458.92-28,036,256.21-7,900,168.68

Finding the Fourth Proportional to 18,683,458.92, 28,036,256.21 and 7,900,168.68

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Solution

The fourth proportional to 18,683,458.92, 28,036,256.21 and 7,900,168.68 is: 11,854,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,458.92 : 28,036,256.21 = 7,900,168.68 : x
  2. Step 2: Convert to fraction form
    18,683,458.92/28,036,256.21 = 7,900,168.68/x
  3. Step 3: Cross multiply
    18,683,458.92x = 28,036,256.21 × 7,900,168.68
  4. Step 4: Simplify right side
    18,683,458.92x = 221,491,153,214,697.50
  5. Step 5: Solve for x
    x = 221,491,153,214,697.50/18,683,458.92
  6. Step 6: Final answer
    x = 11,854,932.97

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1.5x scale

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.