Home / 4,750,128.90-6,555,018.38-2,815,240.77

Finding the Fourth Proportional to 4,750,128.90, 6,555,018.38 and 2,815,240.77

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Solution

The fourth proportional to 4,750,128.90, 6,555,018.38 and 2,815,240.77 is: 3,884,937.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750,128.90 : 6,555,018.38 = 2,815,240.77 : x
  2. Step 2: Convert to fraction form
    4,750,128.90/6,555,018.38 = 2,815,240.77/x
  3. Step 3: Cross multiply
    4,750,128.90x = 6,555,018.38 × 2,815,240.77
  4. Step 4: Simplify right side
    4,750,128.90x = 18,453,954,977,399.15
  5. Step 5: Solve for x
    x = 18,453,954,977,399.15/4,750,128.90
  6. Step 6: Final answer
    x = 3,884,937.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.