Home / 7,749,640.80-11,619,212.40-3,960,007.20

Finding the Fourth Proportional to 7,749,640.80, 11,619,212.40 and 3,960,007.20

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Solution

The fourth proportional to 7,749,640.80, 11,619,212.40 and 3,960,007.20 is: 5,937,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749,640.80 : 11,619,212.40 = 3,960,007.20 : x
  2. Step 2: Convert to fraction form
    7,749,640.80/11,619,212.40 = 3,960,007.20/x
  3. Step 3: Cross multiply
    7,749,640.80x = 11,619,212.40 × 3,960,007.20
  4. Step 4: Simplify right side
    7,749,640.80x = 46,012,164,762,329.28
  5. Step 5: Solve for x
    x = 46,012,164,762,329.28/7,749,640.80
  6. Step 6: Final answer
    x = 5,937,328.70

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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.