Home / 13,923,868.51-20,890,078.81-6,646,614.40

Finding the Fourth Proportional to 13,923,868.51, 20,890,078.81 and 6,646,614.40

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Solution

The fourth proportional to 13,923,868.51, 20,890,078.81 and 6,646,614.40 is: 9,971,962.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923,868.51 : 20,890,078.81 = 6,646,614.40 : x
  2. Step 2: Convert to fraction form
    13,923,868.51/20,890,078.81 = 6,646,614.40/x
  3. Step 3: Cross multiply
    13,923,868.51x = 20,890,078.81 × 6,646,614.40
  4. Step 4: Simplify right side
    13,923,868.51x = 138,848,298,635,680.86
  5. Step 5: Solve for x
    x = 138,848,298,635,680.86/13,923,868.51
  6. Step 6: Final answer
    x = 9,971,962.79

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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.