Home / 7,217,039.06-9,959,430.56-3,909,269.90

Finding the Fourth Proportional to 7,217,039.06, 9,959,430.56 and 3,909,269.90

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Solution

The fourth proportional to 7,217,039.06, 9,959,430.56 and 3,909,269.90 is: 5,394,747.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217,039.06 : 9,959,430.56 = 3,909,269.90 : x
  2. Step 2: Convert to fraction form
    7,217,039.06/9,959,430.56 = 3,909,269.90/x
  3. Step 3: Cross multiply
    7,217,039.06x = 9,959,430.56 × 3,909,269.90
  4. Step 4: Simplify right side
    7,217,039.06x = 38,934,102,139,701.15
  5. Step 5: Solve for x
    x = 38,934,102,139,701.15/7,217,039.06
  6. Step 6: Final answer
    x = 5,394,747.32

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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.