Home / 12,939,981.60-19,409,972.40-6,204,928.80

Finding the Fourth Proportional to 12,939,981.60, 19,409,972.40 and 6,204,928.80

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Solution

The fourth proportional to 12,939,981.60, 19,409,972.40 and 6,204,928.80 is: 9,307,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939,981.60 : 19,409,972.40 = 6,204,928.80 : x
  2. Step 2: Convert to fraction form
    12,939,981.60/19,409,972.40 = 6,204,928.80/x
  3. Step 3: Cross multiply
    12,939,981.60x = 19,409,972.40 × 6,204,928.80
  4. Step 4: Simplify right side
    12,939,981.60x = 120,437,496,751,965.11
  5. Step 5: Solve for x
    x = 120,437,496,751,965.11/12,939,981.60
  6. Step 6: Final answer
    x = 9,307,393.20

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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.