Home / 18,774,612.81-28,111,463.58-11,914,041.65

Finding the Fourth Proportional to 18,774,612.81, 28,111,463.58 and 11,914,041.65

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Solution

The fourth proportional to 18,774,612.81, 28,111,463.58 and 11,914,041.65 is: 17,839,044.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,774,612.81 : 28,111,463.58 = 11,914,041.65 : x
  2. Step 2: Convert to fraction form
    18,774,612.81/28,111,463.58 = 11,914,041.65/x
  3. Step 3: Cross multiply
    18,774,612.81x = 28,111,463.58 × 11,914,041.65
  4. Step 4: Simplify right side
    18,774,612.81x = 334,921,147,934,578.12
  5. Step 5: Solve for x
    x = 334,921,147,934,578.12/18,774,612.81
  6. Step 6: Final answer
    x = 17,839,044.21

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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.