Home / 49,378,539.60-74,067,809.40-12,986,859.60

Finding the Fourth Proportional to 49,378,539.60, 74,067,809.40 and 12,986,859.60

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Solution

The fourth proportional to 49,378,539.60, 74,067,809.40 and 12,986,859.60 is: 19,480,289.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,378,539.60 : 74,067,809.40 = 12,986,859.60 : x
  2. Step 2: Convert to fraction form
    49,378,539.60/74,067,809.40 = 12,986,859.60/x
  3. Step 3: Cross multiply
    49,378,539.60x = 74,067,809.40 × 12,986,859.60
  4. Step 4: Simplify right side
    49,378,539.60x = 961,908,241,557,360.25
  5. Step 5: Solve for x
    x = 961,908,241,557,360.25/49,378,539.60
  6. Step 6: Final answer
    x = 19,480,289.40

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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.