Home / 13,690,228.36-18,892,738.86-7,495,171.72

Finding the Fourth Proportional to 13,690,228.36, 18,892,738.86 and 7,495,171.72

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Solution

The fourth proportional to 13,690,228.36, 18,892,738.86 and 7,495,171.72 is: 10,343,459.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690,228.36 : 18,892,738.86 = 7,495,171.72 : x
  2. Step 2: Convert to fraction form
    13,690,228.36/18,892,738.86 = 7,495,171.72/x
  3. Step 3: Cross multiply
    13,690,228.36x = 18,892,738.86 × 7,495,171.72
  4. Step 4: Simplify right side
    13,690,228.36x = 141,604,322,016,817.03
  5. Step 5: Solve for x
    x = 141,604,322,016,817.03/13,690,228.36
  6. Step 6: Final answer
    x = 10,343,459.46

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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.