Home / 13,572,180.96-18,729,742.82-7,377,223.84

Finding the Fourth Proportional to 13,572,180.96, 18,729,742.82 and 7,377,223.84

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Solution

The fourth proportional to 13,572,180.96, 18,729,742.82 and 7,377,223.84 is: 10,180,641.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572,180.96 : 18,729,742.82 = 7,377,223.84 : x
  2. Step 2: Convert to fraction form
    13,572,180.96/18,729,742.82 = 7,377,223.84/x
  3. Step 3: Cross multiply
    13,572,180.96x = 18,729,742.82 × 7,377,223.84
  4. Step 4: Simplify right side
    13,572,180.96x = 138,173,505,185,807.11
  5. Step 5: Solve for x
    x = 138,173,505,185,807.11/13,572,180.96
  6. Step 6: Final answer
    x = 10,180,641.24

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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.