Home / 20,486,528.80-30,729,793.20-5,340,460.30

Finding the Fourth Proportional to 20,486,528.80, 30,729,793.20 and 5,340,460.30

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Solution

The fourth proportional to 20,486,528.80, 30,729,793.20 and 5,340,460.30 is: 8,010,690.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,486,528.80 : 30,729,793.20 = 5,340,460.30 : x
  2. Step 2: Convert to fraction form
    20,486,528.80/30,729,793.20 = 5,340,460.30/x
  3. Step 3: Cross multiply
    20,486,528.80x = 30,729,793.20 × 5,340,460.30
  4. Step 4: Simplify right side
    20,486,528.80x = 164,111,240,611,809.94
  5. Step 5: Solve for x
    x = 164,111,240,611,809.94/20,486,528.80
  6. Step 6: Final answer
    x = 8,010,690.45

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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.