Home / 18,697,564.40-28,046,346.60-12,315,023.60

Finding the Fourth Proportional to 18,697,564.40, 28,046,346.60 and 12,315,023.60

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Solution

The fourth proportional to 18,697,564.40, 28,046,346.60 and 12,315,023.60 is: 18,472,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697,564.40 : 28,046,346.60 = 12,315,023.60 : x
  2. Step 2: Convert to fraction form
    18,697,564.40/28,046,346.60 = 12,315,023.60/x
  3. Step 3: Cross multiply
    18,697,564.40x = 28,046,346.60 × 12,315,023.60
  4. Step 4: Simplify right side
    18,697,564.40x = 345,391,420,272,779.75
  5. Step 5: Solve for x
    x = 345,391,420,272,779.75/18,697,564.40
  6. Step 6: Final answer
    x = 18,472,535.40

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Similar ratio
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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.