Home / 18,171,742.25-25,077,082.83-9,911,981.80

Finding the Fourth Proportional to 18,171,742.25, 25,077,082.83 and 9,911,981.80

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Solution

The fourth proportional to 18,171,742.25, 25,077,082.83 and 9,911,981.80 is: 13,678,577.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171,742.25 : 25,077,082.83 = 9,911,981.80 : x
  2. Step 2: Convert to fraction form
    18,171,742.25/25,077,082.83 = 9,911,981.80/x
  3. Step 3: Cross multiply
    18,171,742.25x = 25,077,082.83 × 9,911,981.80
  4. Step 4: Simplify right side
    18,171,742.25x = 248,563,588,475,116.47
  5. Step 5: Solve for x
    x = 248,563,588,475,116.47/18,171,742.25
  6. Step 6: Final answer
    x = 13,678,577.71

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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.