Home / 18,774,612.56-28,111,463.21-11,914,041.40

Finding the Fourth Proportional to 18,774,612.56, 28,111,463.21 and 11,914,041.40

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Solution

The fourth proportional to 18,774,612.56, 28,111,463.21 and 11,914,041.40 is: 17,839,043.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,774,612.56 : 28,111,463.21 = 11,914,041.40 : x
  2. Step 2: Convert to fraction form
    18,774,612.56/28,111,463.21 = 11,914,041.40/x
  3. Step 3: Cross multiply
    18,774,612.56x = 28,111,463.21 × 11,914,041.40
  4. Step 4: Simplify right side
    18,774,612.56x = 334,921,136,368,668.06
  5. Step 5: Solve for x
    x = 334,921,136,368,668.06/18,774,612.56
  6. Step 6: Final answer
    x = 17,839,043.83

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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.