Home / 80,907,892.41-111,626,430.84-49,513,213.65

Finding the Fourth Proportional to 80,907,892.41, 111,626,430.84 and 49,513,213.65

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Solution

The fourth proportional to 80,907,892.41, 111,626,430.84 and 49,513,213.65 is: 68,312,041.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,907,892.41 : 111,626,430.84 = 49,513,213.65 : x
  2. Step 2: Convert to fraction form
    80,907,892.41/111,626,430.84 = 49,513,213.65/x
  3. Step 3: Cross multiply
    80,907,892.41x = 111,626,430.84 × 49,513,213.65
  4. Step 4: Simplify right side
    80,907,892.41x = 5,526,983,319,167,869
  5. Step 5: Solve for x
    x = 5,526,983,319,167,869/80,907,892.41
  6. Step 6: Final answer
    x = 68,312,041.69

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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.