Home / 12,376,690-18,565,009.38-6,982,891.84

Finding the Fourth Proportional to 12,376,690, 18,565,009.38 and 6,982,891.84

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Solution

The fourth proportional to 12,376,690, 18,565,009.38 and 6,982,891.84 is: 10,474,323.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376,690 : 18,565,009.38 = 6,982,891.84 : x
  2. Step 2: Convert to fraction form
    12,376,690/18,565,009.38 = 6,982,891.84/x
  3. Step 3: Cross multiply
    12,376,690x = 18,565,009.38 × 6,982,891.84
  4. Step 4: Simplify right side
    12,376,690x = 129,637,452,509,125.45
  5. Step 5: Solve for x
    x = 129,637,452,509,125.45/12,376,690
  6. Step 6: Final answer
    x = 10,474,323.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.