Home / 20,736,095.80-31,104,143.70-18,681,190.60

Finding the Fourth Proportional to 20,736,095.80, 31,104,143.70 and 18,681,190.60

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Solution

The fourth proportional to 20,736,095.80, 31,104,143.70 and 18,681,190.60 is: 28,021,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,095.80 : 31,104,143.70 = 18,681,190.60 : x
  2. Step 2: Convert to fraction form
    20,736,095.80/31,104,143.70 = 18,681,190.60/x
  3. Step 3: Cross multiply
    20,736,095.80x = 31,104,143.70 × 18,681,190.60
  4. Step 4: Simplify right side
    20,736,095.80x = 581,062,436,909,489.25
  5. Step 5: Solve for x
    x = 581,062,436,909,489.25/20,736,095.80
  6. Step 6: Final answer
    x = 28,021,785.90

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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.