Home / 12,660,005.71-17,470,891.75-6,858,787.45

Finding the Fourth Proportional to 12,660,005.71, 17,470,891.75 and 6,858,787.45

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Solution

The fourth proportional to 12,660,005.71, 17,470,891.75 and 6,858,787.45 is: 9,465,172.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660,005.71 : 17,470,891.75 = 6,858,787.45 : x
  2. Step 2: Convert to fraction form
    12,660,005.71/17,470,891.75 = 6,858,787.45/x
  3. Step 3: Cross multiply
    12,660,005.71x = 17,470,891.75 × 6,858,787.45
  4. Step 4: Simplify right side
    12,660,005.71x = 119,829,133,005,001.06
  5. Step 5: Solve for x
    x = 119,829,133,005,001.06/12,660,005.71
  6. Step 6: Final answer
    x = 9,465,172.12

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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.