Home / 13,285,506.40-19,928,259.60-12,151,765.60

Finding the Fourth Proportional to 13,285,506.40, 19,928,259.60 and 12,151,765.60

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Solution

The fourth proportional to 13,285,506.40, 19,928,259.60 and 12,151,765.60 is: 18,227,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285,506.40 : 19,928,259.60 = 12,151,765.60 : x
  2. Step 2: Convert to fraction form
    13,285,506.40/19,928,259.60 = 12,151,765.60/x
  3. Step 3: Cross multiply
    13,285,506.40x = 19,928,259.60 × 12,151,765.60
  4. Step 4: Simplify right side
    13,285,506.40x = 242,163,539,475,149.78
  5. Step 5: Solve for x
    x = 242,163,539,475,149.78/13,285,506.40
  6. Step 6: Final answer
    x = 18,227,648.40

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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.