Home / 20,421,979.97-30,638,952.90-6,588,658.22

Finding the Fourth Proportional to 20,421,979.97, 30,638,952.90 and 6,588,658.22

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Solution

The fourth proportional to 20,421,979.97, 30,638,952.90 and 6,588,658.22 is: 9,884,917.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421,979.97 : 30,638,952.90 = 6,588,658.22 : x
  2. Step 2: Convert to fraction form
    20,421,979.97/30,638,952.90 = 6,588,658.22/x
  3. Step 3: Cross multiply
    20,421,979.97x = 30,638,952.90 × 6,588,658.22
  4. Step 4: Simplify right side
    20,421,979.97x = 201,869,588,838,479.12
  5. Step 5: Solve for x
    x = 201,869,588,838,479.12/20,421,979.97
  6. Step 6: Final answer
    x = 9,884,917.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.