Home / 18,683,862.60-28,025,793.90-5,220,690.60

Finding the Fourth Proportional to 18,683,862.60, 28,025,793.90 and 5,220,690.60

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Solution

The fourth proportional to 18,683,862.60, 28,025,793.90 and 5,220,690.60 is: 7,831,035.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,862.60 : 28,025,793.90 = 5,220,690.60 : x
  2. Step 2: Convert to fraction form
    18,683,862.60/28,025,793.90 = 5,220,690.60/x
  3. Step 3: Cross multiply
    18,683,862.60x = 28,025,793.90 × 5,220,690.60
  4. Step 4: Simplify right side
    18,683,862.60x = 146,313,998,771,267.31
  5. Step 5: Solve for x
    x = 146,313,998,771,267.31/18,683,862.60
  6. Step 6: Final answer
    x = 7,831,035.90

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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.