Home / 6,619,989.52-9,135,867.72-3,719,386

Finding the Fourth Proportional to 6,619,989.52, 9,135,867.72 and 3,719,386

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Solution

The fourth proportional to 6,619,989.52, 9,135,867.72 and 3,719,386 is: 5,132,911.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619,989.52 : 9,135,867.72 = 3,719,386 : x
  2. Step 2: Convert to fraction form
    6,619,989.52/9,135,867.72 = 3,719,386/x
  3. Step 3: Cross multiply
    6,619,989.52x = 9,135,867.72 × 3,719,386
  4. Step 4: Simplify right side
    6,619,989.52x = 33,979,818,495,619.92
  5. Step 5: Solve for x
    x = 33,979,818,495,619.92/6,619,989.52
  6. Step 6: Final answer
    x = 5,132,911.22

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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.