Home / 12,904,382.16-17,807,912.28-7,103,039.40

Finding the Fourth Proportional to 12,904,382.16, 17,807,912.28 and 7,103,039.40

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Solution

The fourth proportional to 12,904,382.16, 17,807,912.28 and 7,103,039.40 is: 9,802,120.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904,382.16 : 17,807,912.28 = 7,103,039.40 : x
  2. Step 2: Convert to fraction form
    12,904,382.16/17,807,912.28 = 7,103,039.40/x
  3. Step 3: Cross multiply
    12,904,382.16x = 17,807,912.28 × 7,103,039.40
  4. Step 4: Simplify right side
    12,904,382.16x = 126,490,302,556,583.84
  5. Step 5: Solve for x
    x = 126,490,302,556,583.84/12,904,382.16
  6. Step 6: Final answer
    x = 9,802,120.01

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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.