Home / 12,986,943.60-17,922,510.36-7,185,630.96

Finding the Fourth Proportional to 12,986,943.60, 17,922,510.36 and 7,185,630.96

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Solution

The fourth proportional to 12,986,943.60, 17,922,510.36 and 7,185,630.96 is: 9,916,462.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,986,943.60 : 17,922,510.36 = 7,185,630.96 : x
  2. Step 2: Convert to fraction form
    12,986,943.60/17,922,510.36 = 7,185,630.96/x
  3. Step 3: Cross multiply
    12,986,943.60x = 17,922,510.36 × 7,185,630.96
  4. Step 4: Simplify right side
    12,986,943.60x = 128,784,545,323,736.73
  5. Step 5: Solve for x
    x = 128,784,545,323,736.73/12,986,943.60
  6. Step 6: Final answer
    x = 9,916,462.97

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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.