Home / 20,736,280.40-31,104,420.60-18,272,843.60

Finding the Fourth Proportional to 20,736,280.40, 31,104,420.60 and 18,272,843.60

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Solution

The fourth proportional to 20,736,280.40, 31,104,420.60 and 18,272,843.60 is: 27,409,265.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,280.40 : 31,104,420.60 = 18,272,843.60 : x
  2. Step 2: Convert to fraction form
    20,736,280.40/31,104,420.60 = 18,272,843.60/x
  3. Step 3: Cross multiply
    20,736,280.40x = 31,104,420.60 × 18,272,843.60
  4. Step 4: Simplify right side
    20,736,280.40x = 568,366,212,892,418.25
  5. Step 5: Solve for x
    x = 568,366,212,892,418.25/20,736,280.40
  6. Step 6: Final answer
    x = 27,409,265.40

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1.5x scale

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.