Home / 9,789,946.76-13,510,351.54-5,379,946.57

Finding the Fourth Proportional to 9,789,946.76, 13,510,351.54 and 5,379,946.57

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Solution

The fourth proportional to 9,789,946.76, 13,510,351.54 and 5,379,946.57 is: 7,424,449.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789,946.76 : 13,510,351.54 = 5,379,946.57 : x
  2. Step 2: Convert to fraction form
    9,789,946.76/13,510,351.54 = 5,379,946.57/x
  3. Step 3: Cross multiply
    9,789,946.76x = 13,510,351.54 × 5,379,946.57
  4. Step 4: Simplify right side
    9,789,946.76x = 72,684,969,400,217.48
  5. Step 5: Solve for x
    x = 72,684,969,400,217.48/9,789,946.76
  6. Step 6: Final answer
    x = 7,424,449.92

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Double scale
Find fourth proportional to 9,789,947.76, 13,510,352.92 and 5,379,947.57
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1.5x scale

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.