Home / 18,774,418.79-28,111,172.54-11,913,847.76

Finding the Fourth Proportional to 18,774,418.79, 28,111,172.54 and 11,913,847.76

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Solution

The fourth proportional to 18,774,418.79, 28,111,172.54 and 11,913,847.76 is: 17,838,753.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,774,418.79 : 28,111,172.54 = 11,913,847.76 : x
  2. Step 2: Convert to fraction form
    18,774,418.79/28,111,172.54 = 11,913,847.76/x
  3. Step 3: Cross multiply
    18,774,418.79x = 28,111,172.54 × 11,913,847.76
  4. Step 4: Simplify right side
    18,774,418.79x = 334,912,229,796,527.44
  5. Step 5: Solve for x
    x = 334,912,229,796,527.44/18,774,418.79
  6. Step 6: Final answer
    x = 17,838,753.55

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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.