Home / 12,914,979-17,822,671.02-7,485,620.28

Finding the Fourth Proportional to 12,914,979, 17,822,671.02 and 7,485,620.28

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Solution

The fourth proportional to 12,914,979, 17,822,671.02 and 7,485,620.28 is: 10,330,155.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,914,979 : 17,822,671.02 = 7,485,620.28 : x
  2. Step 2: Convert to fraction form
    12,914,979/17,822,671.02 = 7,485,620.28/x
  3. Step 3: Cross multiply
    12,914,979x = 17,822,671.02 × 7,485,620.28
  4. Step 4: Simplify right side
    12,914,979x = 133,413,747,631,080.28
  5. Step 5: Solve for x
    x = 133,413,747,631,080.28/12,914,979
  6. Step 6: Final answer
    x = 10,330,155.99

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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.