Home / 20,756,384.80-31,134,577.20-19,764,361.60

Finding the Fourth Proportional to 20,756,384.80, 31,134,577.20 and 19,764,361.60

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Solution

The fourth proportional to 20,756,384.80, 31,134,577.20 and 19,764,361.60 is: 29,646,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,756,384.80 : 31,134,577.20 = 19,764,361.60 : x
  2. Step 2: Convert to fraction form
    20,756,384.80/31,134,577.20 = 19,764,361.60/x
  3. Step 3: Cross multiply
    20,756,384.80x = 31,134,577.20 × 19,764,361.60
  4. Step 4: Simplify right side
    20,756,384.80x = 615,355,042,043,915.50
  5. Step 5: Solve for x
    x = 615,355,042,043,915.50/20,756,384.80
  6. Step 6: Final answer
    x = 29,646,542.40

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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.