Home / 20,736,002.40-31,104,003.60-18,645,813.60

Finding the Fourth Proportional to 20,736,002.40, 31,104,003.60 and 18,645,813.60

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Solution

The fourth proportional to 20,736,002.40, 31,104,003.60 and 18,645,813.60 is: 27,968,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,002.40 : 31,104,003.60 = 18,645,813.60 : x
  2. Step 2: Convert to fraction form
    20,736,002.40/31,104,003.60 = 18,645,813.60/x
  3. Step 3: Cross multiply
    20,736,002.40x = 31,104,003.60 × 18,645,813.60
  4. Step 4: Simplify right side
    20,736,002.40x = 579,959,453,339,329
  5. Step 5: Solve for x
    x = 579,959,453,339,329/20,736,002.40
  6. Step 6: Final answer
    x = 27,968,720.40

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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.