Home / 18,681,801.90-28,034,512.65-11,005,431.90

Finding the Fourth Proportional to 18,681,801.90, 28,034,512.65 and 11,005,431.90

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Solution

The fourth proportional to 18,681,801.90, 28,034,512.65 and 11,005,431.90 is: 16,515,104.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681,801.90 : 28,034,512.65 = 11,005,431.90 : x
  2. Step 2: Convert to fraction form
    18,681,801.90/28,034,512.65 = 11,005,431.90/x
  3. Step 3: Cross multiply
    18,681,801.90x = 28,034,512.65 × 11,005,431.90
  4. Step 4: Simplify right side
    18,681,801.90x = 308,531,919,819,263.50
  5. Step 5: Solve for x
    x = 308,531,919,819,263.50/18,681,801.90
  6. Step 6: Final answer
    x = 16,515,104.99

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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.