Home / 13,288,339.20-19,954,627.20-7,308,998.40

Finding the Fourth Proportional to 13,288,339.20, 19,954,627.20 and 7,308,998.40

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Solution

The fourth proportional to 13,288,339.20, 19,954,627.20 and 7,308,998.40 is: 10,975,663.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288,339.20 : 19,954,627.20 = 7,308,998.40 : x
  2. Step 2: Convert to fraction form
    13,288,339.20/19,954,627.20 = 7,308,998.40/x
  3. Step 3: Cross multiply
    13,288,339.20x = 19,954,627.20 × 7,308,998.40
  4. Step 4: Simplify right side
    13,288,339.20x = 145,848,338,277,396.47
  5. Step 5: Solve for x
    x = 145,848,338,277,396.47/13,288,339.20
  6. Step 6: Final answer
    x = 10,975,663.41

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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.