Home / 18,702,128.40-28,046,194.20-6,566,902.80

Finding the Fourth Proportional to 18,702,128.40, 28,046,194.20 and 6,566,902.80

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Solution

The fourth proportional to 18,702,128.40, 28,046,194.20 and 6,566,902.80 is: 9,847,896.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702,128.40 : 28,046,194.20 = 6,566,902.80 : x
  2. Step 2: Convert to fraction form
    18,702,128.40/28,046,194.20 = 6,566,902.80/x
  3. Step 3: Cross multiply
    18,702,128.40x = 28,046,194.20 × 6,566,902.80
  4. Step 4: Simplify right side
    18,702,128.40x = 184,176,631,221,323.75
  5. Step 5: Solve for x
    x = 184,176,631,221,323.75/18,702,128.40
  6. Step 6: Final answer
    x = 9,847,896.84

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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.