Home / 18,678,796.20-28,018,194.30-6,561,941.40

Finding the Fourth Proportional to 18,678,796.20, 28,018,194.30 and 6,561,941.40

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Solution

The fourth proportional to 18,678,796.20, 28,018,194.30 and 6,561,941.40 is: 9,842,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,796.20 : 28,018,194.30 = 6,561,941.40 : x
  2. Step 2: Convert to fraction form
    18,678,796.20/28,018,194.30 = 6,561,941.40/x
  3. Step 3: Cross multiply
    18,678,796.20x = 28,018,194.30 × 6,561,941.40
  4. Step 4: Simplify right side
    18,678,796.20x = 183,853,749,130,414.03
  5. Step 5: Solve for x
    x = 183,853,749,130,414.03/18,678,796.20
  6. Step 6: Final answer
    x = 9,842,912.10

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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.