Home / 13,623,946.74-18,800,909.60-7,428,978.25

Finding the Fourth Proportional to 13,623,946.74, 18,800,909.60 and 7,428,978.25

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Solution

The fourth proportional to 13,623,946.74, 18,800,909.60 and 7,428,978.25 is: 10,251,915.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623,946.74 : 18,800,909.60 = 7,428,978.25 : x
  2. Step 2: Convert to fraction form
    13,623,946.74/18,800,909.60 = 7,428,978.25/x
  3. Step 3: Cross multiply
    13,623,946.74x = 18,800,909.60 × 7,428,978.25
  4. Step 4: Simplify right side
    13,623,946.74x = 139,671,548,414,469.02
  5. Step 5: Solve for x
    x = 139,671,548,414,469.02/13,623,946.74
  6. Step 6: Final answer
    x = 10,251,915.33

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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.