Home / 12,906,783.45-17,811,080.87-7,105,343.13

Finding the Fourth Proportional to 12,906,783.45, 17,811,080.87 and 7,105,343.13

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Solution

The fourth proportional to 12,906,783.45, 17,811,080.87 and 7,105,343.13 is: 9,805,219.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906,783.45 : 17,811,080.87 = 7,105,343.13 : x
  2. Step 2: Convert to fraction form
    12,906,783.45/17,811,080.87 = 7,105,343.13/x
  3. Step 3: Cross multiply
    12,906,783.45x = 17,811,080.87 × 7,105,343.13
  4. Step 4: Simplify right side
    12,906,783.45x = 126,553,841,062,002.19
  5. Step 5: Solve for x
    x = 126,553,841,062,002.19/12,906,783.45
  6. Step 6: Final answer
    x = 9,805,219.21

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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.