Home / 39,017,521.20-53,843,456.76-21,613,485.36

Finding the Fourth Proportional to 39,017,521.20, 53,843,456.76 and 21,613,485.36

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Solution

The fourth proportional to 39,017,521.20, 53,843,456.76 and 21,613,485.36 is: 29,826,209.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,017,521.20 : 53,843,456.76 = 21,613,485.36 : x
  2. Step 2: Convert to fraction form
    39,017,521.20/53,843,456.76 = 21,613,485.36/x
  3. Step 3: Cross multiply
    39,017,521.20x = 53,843,456.76 × 21,613,485.36
  4. Step 4: Simplify right side
    39,017,521.20x = 1,163,744,764,414,053
  5. Step 5: Solve for x
    x = 1,163,744,764,414,053/39,017,521.20
  6. Step 6: Final answer
    x = 29,826,209.58

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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.