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Finding the Fourth Proportional to 13,459,191.32, 18,573,589.32 and 7,347,619.82

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Solution

The fourth proportional to 13,459,191.32, 18,573,589.32 and 7,347,619.82 is: 10,139,663.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459,191.32 : 18,573,589.32 = 7,347,619.82 : x
  2. Step 2: Convert to fraction form
    13,459,191.32/18,573,589.32 = 7,347,619.82/x
  3. Step 3: Cross multiply
    13,459,191.32x = 18,573,589.32 × 7,347,619.82
  4. Step 4: Simplify right side
    13,459,191.32x = 136,471,672,923,304.39
  5. Step 5: Solve for x
    x = 136,471,672,923,304.39/13,459,191.32
  6. Step 6: Final answer
    x = 10,139,663.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.