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Finding the Fourth Proportional to 13,297,978.80, 19,897,201.80 and 8,819,002.80

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Solution

The fourth proportional to 13,297,978.80, 19,897,201.80 and 8,819,002.80 is: 13,195,499.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297,978.80 : 19,897,201.80 = 8,819,002.80 : x
  2. Step 2: Convert to fraction form
    13,297,978.80/19,897,201.80 = 8,819,002.80/x
  3. Step 3: Cross multiply
    13,297,978.80x = 19,897,201.80 × 8,819,002.80
  4. Step 4: Simplify right side
    13,297,978.80x = 175,473,478,386,365.06
  5. Step 5: Solve for x
    x = 175,473,478,386,365.06/13,297,978.80
  6. Step 6: Final answer
    x = 13,195,499.93

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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.