Home / 36,107,713.85-49,828,645.12-20,638,130.65

Finding the Fourth Proportional to 36,107,713.85, 49,828,645.12 and 20,638,130.65

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Solution

The fourth proportional to 36,107,713.85, 49,828,645.12 and 20,638,130.65 is: 28,480,620.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,107,713.85 : 49,828,645.12 = 20,638,130.65 : x
  2. Step 2: Convert to fraction form
    36,107,713.85/49,828,645.12 = 20,638,130.65/x
  3. Step 3: Cross multiply
    36,107,713.85x = 49,828,645.12 × 20,638,130.65
  4. Step 4: Simplify right side
    36,107,713.85x = 1,028,370,087,870,343.38
  5. Step 5: Solve for x
    x = 1,028,370,087,870,343.38/36,107,713.85
  6. Step 6: Final answer
    x = 28,480,620.29

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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.