Home / 7,220,672.72-10,828,208.76-3,853,042.64

Finding the Fourth Proportional to 7,220,672.72, 10,828,208.76 and 3,853,042.64

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Solution

The fourth proportional to 7,220,672.72, 10,828,208.76 and 3,853,042.64 is: 5,778,069.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220,672.72 : 10,828,208.76 = 3,853,042.64 : x
  2. Step 2: Convert to fraction form
    7,220,672.72/10,828,208.76 = 3,853,042.64/x
  3. Step 3: Cross multiply
    7,220,672.72x = 10,828,208.76 × 3,853,042.64
  4. Step 4: Simplify right side
    7,220,672.72x = 41,721,550,067,101.52
  5. Step 5: Solve for x
    x = 41,721,550,067,101.52/7,220,672.72
  6. Step 6: Final answer
    x = 5,778,069.67

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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.