Home / 12,878,540.80-19,317,811.20-3,901,926.40

Finding the Fourth Proportional to 12,878,540.80, 19,317,811.20 and 3,901,926.40

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Solution

The fourth proportional to 12,878,540.80, 19,317,811.20 and 3,901,926.40 is: 5,852,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,540.80 : 19,317,811.20 = 3,901,926.40 : x
  2. Step 2: Convert to fraction form
    12,878,540.80/19,317,811.20 = 3,901,926.40/x
  3. Step 3: Cross multiply
    12,878,540.80x = 19,317,811.20 × 3,901,926.40
  4. Step 4: Simplify right side
    12,878,540.80x = 75,376,677,511,495.67
  5. Step 5: Solve for x
    x = 75,376,677,511,495.67/12,878,540.80
  6. Step 6: Final answer
    x = 5,852,889.60

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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.