Home / 11,918,783.52-16,451,387.20-7,789,435.84

Finding the Fourth Proportional to 11,918,783.52, 16,451,387.20 and 7,789,435.84

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Solution

The fourth proportional to 11,918,783.52, 16,451,387.20 and 7,789,435.84 is: 10,751,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918,783.52 : 16,451,387.20 = 7,789,435.84 : x
  2. Step 2: Convert to fraction form
    11,918,783.52/16,451,387.20 = 7,789,435.84/x
  3. Step 3: Cross multiply
    11,918,783.52x = 16,451,387.20 × 7,789,435.84
  4. Step 4: Simplify right side
    11,918,783.52x = 128,147,025,073,397.23
  5. Step 5: Solve for x
    x = 128,147,025,073,397.23/11,918,783.52
  6. Step 6: Final answer
    x = 10,751,686.60

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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.