Home / 21,422,000.64-32,132,930.52-7,775,128.80

Finding the Fourth Proportional to 21,422,000.64, 32,132,930.52 and 7,775,128.80

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Solution

The fourth proportional to 21,422,000.64, 32,132,930.52 and 7,775,128.80 is: 11,662,667.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,422,000.64 : 32,132,930.52 = 7,775,128.80 : x
  2. Step 2: Convert to fraction form
    21,422,000.64/32,132,930.52 = 7,775,128.80/x
  3. Step 3: Cross multiply
    21,422,000.64x = 32,132,930.52 × 7,775,128.80
  4. Step 4: Simplify right side
    21,422,000.64x = 249,837,673,514,450.97
  5. Step 5: Solve for x
    x = 249,837,673,514,450.97/21,422,000.64
  6. Step 6: Final answer
    x = 11,662,667.63

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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.