Home / 21,128,108.46-31,694,303.22-7,293,264.04

Finding the Fourth Proportional to 21,128,108.46, 31,694,303.22 and 7,293,264.04

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Solution

The fourth proportional to 21,128,108.46, 31,694,303.22 and 7,293,264.04 is: 10,940,634.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,128,108.46 : 31,694,303.22 = 7,293,264.04 : x
  2. Step 2: Convert to fraction form
    21,128,108.46/31,694,303.22 = 7,293,264.04/x
  3. Step 3: Cross multiply
    21,128,108.46x = 31,694,303.22 × 7,293,264.04
  4. Step 4: Simplify right side
    21,128,108.46x = 231,154,921,947,282.19
  5. Step 5: Solve for x
    x = 231,154,921,947,282.19/21,128,108.46
  6. Step 6: Final answer
    x = 10,940,634.95

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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.