Home / 7,149,838.40-10,718,715.36-3,103,265.60

Finding the Fourth Proportional to 7,149,838.40, 10,718,715.36 and 3,103,265.60

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Solution

The fourth proportional to 7,149,838.40, 10,718,715.36 and 3,103,265.60 is: 4,652,275.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149,838.40 : 10,718,715.36 = 3,103,265.60 : x
  2. Step 2: Convert to fraction form
    7,149,838.40/10,718,715.36 = 3,103,265.60/x
  3. Step 3: Cross multiply
    7,149,838.40x = 10,718,715.36 × 3,103,265.60
  4. Step 4: Simplify right side
    7,149,838.40x = 33,263,020,652,879.61
  5. Step 5: Solve for x
    x = 33,263,020,652,879.61/7,149,838.40
  6. Step 6: Final answer
    x = 4,652,275.87

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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.