Home / 18,872,022.80-28,308,034.20-11,295,088.40

Finding the Fourth Proportional to 18,872,022.80, 28,308,034.20 and 11,295,088.40

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Solution

The fourth proportional to 18,872,022.80, 28,308,034.20 and 11,295,088.40 is: 16,942,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,872,022.80 : 28,308,034.20 = 11,295,088.40 : x
  2. Step 2: Convert to fraction form
    18,872,022.80/28,308,034.20 = 11,295,088.40/x
  3. Step 3: Cross multiply
    18,872,022.80x = 28,308,034.20 × 11,295,088.40
  4. Step 4: Simplify right side
    18,872,022.80x = 319,741,748,719,223.31
  5. Step 5: Solve for x
    x = 319,741,748,719,223.31/18,872,022.80
  6. Step 6: Final answer
    x = 16,942,632.60

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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.