Home / 38,696,193.57-53,399,146.08-21,055,168.72

Finding the Fourth Proportional to 38,696,193.57, 53,399,146.08 and 21,055,168.72

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Solution

The fourth proportional to 38,696,193.57, 53,399,146.08 and 21,055,168.72 is: 29,055,261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,696,193.57 : 53,399,146.08 = 21,055,168.72 : x
  2. Step 2: Convert to fraction form
    38,696,193.57/53,399,146.08 = 21,055,168.72/x
  3. Step 3: Cross multiply
    38,696,193.57x = 53,399,146.08 × 21,055,168.72
  4. Step 4: Simplify right side
    38,696,193.57x = 1,124,328,030,218,326.50
  5. Step 5: Solve for x
    x = 1,124,328,030,218,326.50/38,696,193.57
  6. Step 6: Final answer
    x = 29,055,261.68

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Double scale
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Similar ratio
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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.