Home / 39,033,685.36-53,866,806.72-21,630,321.21

Finding the Fourth Proportional to 39,033,685.36, 53,866,806.72 and 21,630,321.21

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Solution

The fourth proportional to 39,033,685.36, 53,866,806.72 and 21,630,321.21 is: 29,850,021.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,033,685.36 : 53,866,806.72 = 21,630,321.21 : x
  2. Step 2: Convert to fraction form
    39,033,685.36/53,866,806.72 = 21,630,321.21/x
  3. Step 3: Cross multiply
    39,033,685.36x = 53,866,806.72 × 21,630,321.21
  4. Step 4: Simplify right side
    39,033,685.36x = 1,165,156,332,031,473.50
  5. Step 5: Solve for x
    x = 1,165,156,332,031,473.50/39,033,685.36
  6. Step 6: Final answer
    x = 29,850,021.11

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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.