Home / 19,118,704.79-28,650,238.50-11,816,574.23

Finding the Fourth Proportional to 19,118,704.79, 28,650,238.50 and 11,816,574.23

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Solution

The fourth proportional to 19,118,704.79, 28,650,238.50 and 11,816,574.23 is: 17,707,667.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118,704.79 : 28,650,238.50 = 11,816,574.23 : x
  2. Step 2: Convert to fraction form
    19,118,704.79/28,650,238.50 = 11,816,574.23/x
  3. Step 3: Cross multiply
    19,118,704.79x = 28,650,238.50 × 11,816,574.23
  4. Step 4: Simplify right side
    19,118,704.79x = 338,547,669,942,453.88
  5. Step 5: Solve for x
    x = 338,547,669,942,453.88/19,118,704.79
  6. Step 6: Final answer
    x = 17,707,667.63

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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.