Home / 72,336,618.60-108,504,927.90-21,223,804.20

Finding the Fourth Proportional to 72,336,618.60, 108,504,927.90 and 21,223,804.20

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Solution

The fourth proportional to 72,336,618.60, 108,504,927.90 and 21,223,804.20 is: 31,835,706.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,336,618.60 : 108,504,927.90 = 21,223,804.20 : x
  2. Step 2: Convert to fraction form
    72,336,618.60/108,504,927.90 = 21,223,804.20/x
  3. Step 3: Cross multiply
    72,336,618.60x = 108,504,927.90 × 21,223,804.20
  4. Step 4: Simplify right side
    72,336,618.60x = 2,302,887,344,484,717
  5. Step 5: Solve for x
    x = 2,302,887,344,484,717/72,336,618.60
  6. Step 6: Final answer
    x = 31,835,706.30

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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.