Home / 12,466,187.40-18,699,281.10-3,947,190.60

Finding the Fourth Proportional to 12,466,187.40, 18,699,281.10 and 3,947,190.60

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Solution

The fourth proportional to 12,466,187.40, 18,699,281.10 and 3,947,190.60 is: 5,920,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,466,187.40 : 18,699,281.10 = 3,947,190.60 : x
  2. Step 2: Convert to fraction form
    12,466,187.40/18,699,281.10 = 3,947,190.60/x
  3. Step 3: Cross multiply
    12,466,187.40x = 18,699,281.10 × 3,947,190.60
  4. Step 4: Simplify right side
    12,466,187.40x = 73,809,626,584,677.67
  5. Step 5: Solve for x
    x = 73,809,626,584,677.67/12,466,187.40
  6. Step 6: Final answer
    x = 5,920,785.90

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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.