Home / 55,361,838.12-76,397,855.82-30,581,491.65

Finding the Fourth Proportional to 55,361,838.12, 76,397,855.82 and 30,581,491.65

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Solution

The fourth proportional to 55,361,838.12, 76,397,855.82 and 30,581,491.65 is: 42,201,640.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,361,838.12 : 76,397,855.82 = 30,581,491.65 : x
  2. Step 2: Convert to fraction form
    55,361,838.12/76,397,855.82 = 30,581,491.65/x
  3. Step 3: Cross multiply
    55,361,838.12x = 76,397,855.82 × 30,581,491.65
  4. Step 4: Simplify right side
    55,361,838.12x = 2,336,360,389,837,233.50
  5. Step 5: Solve for x
    x = 2,336,360,389,837,233.50/55,361,838.12
  6. Step 6: Final answer
    x = 42,201,640.50

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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.