Home / 72,336,623.10-108,504,934.65-21,223,808.70

Finding the Fourth Proportional to 72,336,623.10, 108,504,934.65 and 21,223,808.70

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Solution

The fourth proportional to 72,336,623.10, 108,504,934.65 and 21,223,808.70 is: 31,835,713.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,336,623.10 : 108,504,934.65 = 21,223,808.70 : x
  2. Step 2: Convert to fraction form
    72,336,623.10/108,504,934.65 = 21,223,808.70/x
  3. Step 3: Cross multiply
    72,336,623.10x = 108,504,934.65 × 21,223,808.70
  4. Step 4: Simplify right side
    72,336,623.10x = 2,302,887,976,017,601.50
  5. Step 5: Solve for x
    x = 2,302,887,976,017,601.50/72,336,623.10
  6. Step 6: Final answer
    x = 31,835,713.05

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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.