Home / 18,165,395.38-25,068,062.58-9,905,436.79

Finding the Fourth Proportional to 18,165,395.38, 25,068,062.58 and 9,905,436.79

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Solution

The fourth proportional to 18,165,395.38, 25,068,062.58 and 9,905,436.79 is: 13,669,402.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,165,395.38 : 25,068,062.58 = 9,905,436.79 : x
  2. Step 2: Convert to fraction form
    18,165,395.38/25,068,062.58 = 9,905,436.79/x
  3. Step 3: Cross multiply
    18,165,395.38x = 25,068,062.58 × 9,905,436.79
  4. Step 4: Simplify right side
    18,165,395.38x = 248,310,109,333,954.28
  5. Step 5: Solve for x
    x = 248,310,109,333,954.28/18,165,395.38
  6. Step 6: Final answer
    x = 13,669,402.96

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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.