Home / 19,008,086.40-28,505,131.20-9,420,278.40

Finding the Fourth Proportional to 19,008,086.40, 28,505,131.20 and 9,420,278.40

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Solution

The fourth proportional to 19,008,086.40, 28,505,131.20 and 9,420,278.40 is: 14,126,949.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008,086.40 : 28,505,131.20 = 9,420,278.40 : x
  2. Step 2: Convert to fraction form
    19,008,086.40/28,505,131.20 = 9,420,278.40/x
  3. Step 3: Cross multiply
    19,008,086.40x = 28,505,131.20 × 9,420,278.40
  4. Step 4: Simplify right side
    19,008,086.40x = 268,526,271,732,526.09
  5. Step 5: Solve for x
    x = 268,526,271,732,526.09/19,008,086.40
  6. Step 6: Final answer
    x = 14,126,949.24

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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.