Home / 12,948,078.80-19,413,823.80-5,378,056.40

Finding the Fourth Proportional to 12,948,078.80, 19,413,823.80 and 5,378,056.40

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Solution

The fourth proportional to 12,948,078.80, 19,413,823.80 and 5,378,056.40 is: 8,063,639.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,078.80 : 19,413,823.80 = 5,378,056.40 : x
  2. Step 2: Convert to fraction form
    12,948,078.80/19,413,823.80 = 5,378,056.40/x
  3. Step 3: Cross multiply
    12,948,078.80x = 19,413,823.80 × 5,378,056.40
  4. Step 4: Simplify right side
    12,948,078.80x = 104,408,639,336,062.33
  5. Step 5: Solve for x
    x = 104,408,639,336,062.33/12,948,078.80
  6. Step 6: Final answer
    x = 8,063,639.47

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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.