Home / 18,620,340.34-25,695,666.71-10,780,183.16

Finding the Fourth Proportional to 18,620,340.34, 25,695,666.71 and 10,780,183.16

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Solution

The fourth proportional to 18,620,340.34, 25,695,666.71 and 10,780,183.16 is: 14,876,419.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620,340.34 : 25,695,666.71 = 10,780,183.16 : x
  2. Step 2: Convert to fraction form
    18,620,340.34/25,695,666.71 = 10,780,183.16/x
  3. Step 3: Cross multiply
    18,620,340.34x = 25,695,666.71 × 10,780,183.16
  4. Step 4: Simplify right side
    18,620,340.34x = 277,003,993,498,213.69
  5. Step 5: Solve for x
    x = 277,003,993,498,213.69/18,620,340.34
  6. Step 6: Final answer
    x = 14,876,419.47

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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.