Home / 20,347,281.70-30,520,922.55-18,788,388.10

Finding the Fourth Proportional to 20,347,281.70, 30,520,922.55 and 18,788,388.10

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Solution

The fourth proportional to 20,347,281.70, 30,520,922.55 and 18,788,388.10 is: 28,182,582.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347,281.70 : 30,520,922.55 = 18,788,388.10 : x
  2. Step 2: Convert to fraction form
    20,347,281.70/30,520,922.55 = 18,788,388.10/x
  3. Step 3: Cross multiply
    20,347,281.70x = 30,520,922.55 × 18,788,388.10
  4. Step 4: Simplify right side
    20,347,281.70x = 573,438,938,039,441.75
  5. Step 5: Solve for x
    x = 573,438,938,039,441.75/20,347,281.70
  6. Step 6: Final answer
    x = 28,182,582.15

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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.