Home / 15,347,329.50-21,125,557.22-13,383,743.25

Finding the Fourth Proportional to 15,347,329.50, 21,125,557.22 and 13,383,743.25

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Solution

The fourth proportional to 15,347,329.50, 21,125,557.22 and 13,383,743.25 is: 18,422,686.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,347,329.50 : 21,125,557.22 = 13,383,743.25 : x
  2. Step 2: Convert to fraction form
    15,347,329.50/21,125,557.22 = 13,383,743.25/x
  3. Step 3: Cross multiply
    15,347,329.50x = 21,125,557.22 × 13,383,743.25
  4. Step 4: Simplify right side
    15,347,329.50x = 282,739,033,739,134.62
  5. Step 5: Solve for x
    x = 282,739,033,739,134.62/15,347,329.50
  6. Step 6: Final answer
    x = 18,422,686.09

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1.5x scale

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.