Home / 21,947,382.36-30,286,990.95-12,157,796.28

Finding the Fourth Proportional to 21,947,382.36, 30,286,990.95 and 12,157,796.28

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Solution

The fourth proportional to 21,947,382.36, 30,286,990.95 and 12,157,796.28 is: 16,777,539.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,947,382.36 : 30,286,990.95 = 12,157,796.28 : x
  2. Step 2: Convert to fraction form
    21,947,382.36/30,286,990.95 = 12,157,796.28/x
  3. Step 3: Cross multiply
    21,947,382.36x = 30,286,990.95 × 12,157,796.28
  4. Step 4: Simplify right side
    21,947,382.36x = 368,223,065,904,303.62
  5. Step 5: Solve for x
    x = 368,223,065,904,303.62/21,947,382.36
  6. Step 6: Final answer
    x = 16,777,539.11

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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.