Home / 12,127,953.70-18,191,930.55-7,823,281.60

Finding the Fourth Proportional to 12,127,953.70, 18,191,930.55 and 7,823,281.60

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Solution

The fourth proportional to 12,127,953.70, 18,191,930.55 and 7,823,281.60 is: 11,734,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,953.70 : 18,191,930.55 = 7,823,281.60 : x
  2. Step 2: Convert to fraction form
    12,127,953.70/18,191,930.55 = 7,823,281.60/x
  3. Step 3: Cross multiply
    12,127,953.70x = 18,191,930.55 × 7,823,281.60
  4. Step 4: Simplify right side
    12,127,953.70x = 142,320,595,540,292.88
  5. Step 5: Solve for x
    x = 142,320,595,540,292.88/12,127,953.70
  6. Step 6: Final answer
    x = 11,734,922.40

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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.