Home / 20,736,121.60-31,104,182.40-18,844,998.40

Finding the Fourth Proportional to 20,736,121.60, 31,104,182.40 and 18,844,998.40

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Solution

The fourth proportional to 20,736,121.60, 31,104,182.40 and 18,844,998.40 is: 28,267,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,121.60 : 31,104,182.40 = 18,844,998.40 : x
  2. Step 2: Convert to fraction form
    20,736,121.60/31,104,182.40 = 18,844,998.40/x
  3. Step 3: Cross multiply
    20,736,121.60x = 31,104,182.40 × 18,844,998.40
  4. Step 4: Simplify right side
    20,736,121.60x = 586,158,267,561,308.12
  5. Step 5: Solve for x
    x = 586,158,267,561,308.12/20,736,121.60
  6. Step 6: Final answer
    x = 28,267,497.60

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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.