Home / 20,668,833.60-30,990,808.80-10,591,137.60

Finding the Fourth Proportional to 20,668,833.60, 30,990,808.80 and 10,591,137.60

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Solution

The fourth proportional to 20,668,833.60, 30,990,808.80 and 10,591,137.60 is: 15,880,331.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668,833.60 : 30,990,808.80 = 10,591,137.60 : x
  2. Step 2: Convert to fraction form
    20,668,833.60/30,990,808.80 = 10,591,137.60/x
  3. Step 3: Cross multiply
    20,668,833.60x = 30,990,808.80 × 10,591,137.60
  4. Step 4: Simplify right side
    20,668,833.60x = 328,227,920,336,090.88
  5. Step 5: Solve for x
    x = 328,227,920,336,090.88/20,668,833.60
  6. Step 6: Final answer
    x = 15,880,331.07

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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.