Home / 20,725,281.20-31,087,921.80-7,260,359.60

Finding the Fourth Proportional to 20,725,281.20, 31,087,921.80 and 7,260,359.60

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Solution

The fourth proportional to 20,725,281.20, 31,087,921.80 and 7,260,359.60 is: 10,890,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725,281.20 : 31,087,921.80 = 7,260,359.60 : x
  2. Step 2: Convert to fraction form
    20,725,281.20/31,087,921.80 = 7,260,359.60/x
  3. Step 3: Cross multiply
    20,725,281.20x = 31,087,921.80 × 7,260,359.60
  4. Step 4: Simplify right side
    20,725,281.20x = 225,709,491,484,679.28
  5. Step 5: Solve for x
    x = 225,709,491,484,679.28/20,725,281.20
  6. Step 6: Final answer
    x = 10,890,539.40

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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.