Home / 12,810,947.20-19,188,427.20-9,948,601.60

Finding the Fourth Proportional to 12,810,947.20, 19,188,427.20 and 9,948,601.60

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Solution

The fourth proportional to 12,810,947.20, 19,188,427.20 and 9,948,601.60 is: 14,901,163.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810,947.20 : 19,188,427.20 = 9,948,601.60 : x
  2. Step 2: Convert to fraction form
    12,810,947.20/19,188,427.20 = 9,948,601.60/x
  3. Step 3: Cross multiply
    12,810,947.20x = 19,188,427.20 × 9,948,601.60
  4. Step 4: Simplify right side
    12,810,947.20x = 190,898,017,543,403.50
  5. Step 5: Solve for x
    x = 190,898,017,543,403.50/12,810,947.20
  6. Step 6: Final answer
    x = 14,901,163.40

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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.