Home / 7,920,049.34-11,859,978.80-6,637,283.62

Finding the Fourth Proportional to 7,920,049.34, 11,859,978.80 and 6,637,283.62

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Solution

The fourth proportional to 7,920,049.34, 11,859,978.80 and 6,637,283.62 is: 9,939,084.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920,049.34 : 11,859,978.80 = 6,637,283.62 : x
  2. Step 2: Convert to fraction form
    7,920,049.34/11,859,978.80 = 6,637,283.62/x
  3. Step 3: Cross multiply
    7,920,049.34x = 11,859,978.80 × 6,637,283.62
  4. Step 4: Simplify right side
    7,920,049.34x = 78,718,043,022,787.27
  5. Step 5: Solve for x
    x = 78,718,043,022,787.27/7,920,049.34
  6. Step 6: Final answer
    x = 9,939,084.93

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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.