Home / 18,586,421.43-25,643,668.10-11,141,367.05

Finding the Fourth Proportional to 18,586,421.43, 25,643,668.10 and 11,141,367.05

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Solution

The fourth proportional to 18,586,421.43, 25,643,668.10 and 11,141,367.05 is: 15,371,733.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586,421.43 : 25,643,668.10 = 11,141,367.05 : x
  2. Step 2: Convert to fraction form
    18,586,421.43/25,643,668.10 = 11,141,367.05/x
  3. Step 3: Cross multiply
    18,586,421.43x = 25,643,668.10 × 11,141,367.05
  4. Step 4: Simplify right side
    18,586,421.43x = 285,705,518,626,550.94
  5. Step 5: Solve for x
    x = 285,705,518,626,550.94/18,586,421.43
  6. Step 6: Final answer
    x = 15,371,733.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.