Home / 12,986,944.60-17,922,511.74-7,185,631.96

Finding the Fourth Proportional to 12,986,944.60, 17,922,511.74 and 7,185,631.96

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Solution

The fourth proportional to 12,986,944.60, 17,922,511.74 and 7,185,631.96 is: 9,916,464.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,986,944.60 : 17,922,511.74 = 7,185,631.96 : x
  2. Step 2: Convert to fraction form
    12,986,944.60/17,922,511.74 = 7,185,631.96/x
  3. Step 3: Cross multiply
    12,986,944.60x = 17,922,511.74 × 7,185,631.96
  4. Step 4: Simplify right side
    12,986,944.60x = 128,784,573,162,419.20
  5. Step 5: Solve for x
    x = 128,784,573,162,419.20/12,986,944.60
  6. Step 6: Final answer
    x = 9,916,464.35

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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.