Home / 13,178,617.70-18,186,352.22-7,377,447.11

Finding the Fourth Proportional to 13,178,617.70, 18,186,352.22 and 7,377,447.11

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Solution

The fourth proportional to 13,178,617.70, 18,186,352.22 and 7,377,447.11 is: 10,180,798.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178,617.70 : 18,186,352.22 = 7,377,447.11 : x
  2. Step 2: Convert to fraction form
    13,178,617.70/18,186,352.22 = 7,377,447.11/x
  3. Step 3: Cross multiply
    13,178,617.70x = 18,186,352.22 × 7,377,447.11
  4. Step 4: Simplify right side
    13,178,617.70x = 134,168,851,589,993.86
  5. Step 5: Solve for x
    x = 134,168,851,589,993.86/13,178,617.70
  6. Step 6: Final answer
    x = 10,180,798.52

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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.