Home / 18,701,911.49-28,066,751.94-14,158,681.43

Finding the Fourth Proportional to 18,701,911.49, 28,066,751.94 and 14,158,681.43

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Solution

The fourth proportional to 18,701,911.49, 28,066,751.94 and 14,158,681.43 is: 21,248,533.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701,911.49 : 28,066,751.94 = 14,158,681.43 : x
  2. Step 2: Convert to fraction form
    18,701,911.49/28,066,751.94 = 14,158,681.43/x
  3. Step 3: Cross multiply
    18,701,911.49x = 28,066,751.94 × 14,158,681.43
  4. Step 4: Simplify right side
    18,701,911.49x = 397,388,199,352,960.75
  5. Step 5: Solve for x
    x = 397,388,199,352,960.75/18,701,911.49
  6. Step 6: Final answer
    x = 21,248,533.86

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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.