Home / 7,698,189.20-11,550,048.60-7,421,709.20

Finding the Fourth Proportional to 7,698,189.20, 11,550,048.60 and 7,421,709.20

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Solution

The fourth proportional to 7,698,189.20, 11,550,048.60 and 7,421,709.20 is: 11,135,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,698,189.20 : 11,550,048.60 = 7,421,709.20 : x
  2. Step 2: Convert to fraction form
    7,698,189.20/11,550,048.60 = 7,421,709.20/x
  3. Step 3: Cross multiply
    7,698,189.20x = 11,550,048.60 × 7,421,709.20
  4. Step 4: Simplify right side
    7,698,189.20x = 85,721,101,955,067.12
  5. Step 5: Solve for x
    x = 85,721,101,955,067.12/7,698,189.20
  6. Step 6: Final answer
    x = 11,135,229.30

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1.5x scale

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.