Home / 21,866,622.48-32,788,923.12-7,288,378.56

Finding the Fourth Proportional to 21,866,622.48, 32,788,923.12 and 7,288,378.56

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Solution

The fourth proportional to 21,866,622.48, 32,788,923.12 and 7,288,378.56 is: 10,928,897.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,866,622.48 : 32,788,923.12 = 7,288,378.56 : x
  2. Step 2: Convert to fraction form
    21,866,622.48/32,788,923.12 = 7,288,378.56/x
  3. Step 3: Cross multiply
    21,866,622.48x = 32,788,923.12 × 7,288,378.56
  4. Step 4: Simplify right side
    21,866,622.48x = 238,978,084,273,296.31
  5. Step 5: Solve for x
    x = 238,978,084,273,296.31/21,866,622.48
  6. Step 6: Final answer
    x = 10,928,897.89

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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.