Home / 39,521,725.88-54,539,981.72-21,433,789.88

Finding the Fourth Proportional to 39,521,725.88, 54,539,981.72 and 21,433,789.88

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Solution

The fourth proportional to 39,521,725.88, 54,539,981.72 and 21,433,789.88 is: 29,578,630.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,521,725.88 : 54,539,981.72 = 21,433,789.88 : x
  2. Step 2: Convert to fraction form
    39,521,725.88/54,539,981.72 = 21,433,789.88/x
  3. Step 3: Cross multiply
    39,521,725.88x = 54,539,981.72 × 21,433,789.88
  4. Step 4: Simplify right side
    39,521,725.88x = 1,168,998,507,865,652.25
  5. Step 5: Solve for x
    x = 1,168,998,507,865,652.25/39,521,725.88
  6. Step 6: Final answer
    x = 29,578,630.03

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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.