Home / 66,555,152.28-91,837,668.60-39,043,042.20

Finding the Fourth Proportional to 66,555,152.28, 91,837,668.60 and 39,043,042.20

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Solution

The fourth proportional to 66,555,152.28, 91,837,668.60 and 39,043,042.20 is: 53,874,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,555,152.28 : 91,837,668.60 = 39,043,042.20 : x
  2. Step 2: Convert to fraction form
    66,555,152.28/91,837,668.60 = 39,043,042.20/x
  3. Step 3: Cross multiply
    66,555,152.28x = 91,837,668.60 × 39,043,042.20
  4. Step 4: Simplify right side
    66,555,152.28x = 3,585,621,970,699,415
  5. Step 5: Solve for x
    x = 3,585,621,970,699,415/66,555,152.28
  6. Step 6: Final answer
    x = 53,874,446.20

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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.