Home / 12,997,660.14-17,936,959.95-7,487,994.78

Finding the Fourth Proportional to 12,997,660.14, 17,936,959.95 and 7,487,994.78

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Solution

The fourth proportional to 12,997,660.14, 17,936,959.95 and 7,487,994.78 is: 10,333,541.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,660.14 : 17,936,959.95 = 7,487,994.78 : x
  2. Step 2: Convert to fraction form
    12,997,660.14/17,936,959.95 = 7,487,994.78/x
  3. Step 3: Cross multiply
    12,997,660.14x = 17,936,959.95 × 7,487,994.78
  4. Step 4: Simplify right side
    12,997,660.14x = 134,311,862,474,669.06
  5. Step 5: Solve for x
    x = 134,311,862,474,669.06/12,997,660.14
  6. Step 6: Final answer
    x = 10,333,541.66

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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.