Home / 5,390,320.80-8,085,481.20-4,949,421.60

Finding the Fourth Proportional to 5,390,320.80, 8,085,481.20 and 4,949,421.60

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Solution

The fourth proportional to 5,390,320.80, 8,085,481.20 and 4,949,421.60 is: 7,424,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390,320.80 : 8,085,481.20 = 4,949,421.60 : x
  2. Step 2: Convert to fraction form
    5,390,320.80/8,085,481.20 = 4,949,421.60/x
  3. Step 3: Cross multiply
    5,390,320.80x = 8,085,481.20 × 4,949,421.60
  4. Step 4: Simplify right side
    5,390,320.80x = 40,018,455,297,673.91
  5. Step 5: Solve for x
    x = 40,018,455,297,673.91/5,390,320.80
  6. Step 6: Final answer
    x = 7,424,132.40

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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.