Home / 12,998,913.81-17,937,052.89-7,196,242.41

Finding the Fourth Proportional to 12,998,913.81, 17,937,052.89 and 7,196,242.41

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Solution

The fourth proportional to 12,998,913.81, 17,937,052.89 and 7,196,242.41 is: 9,930,012.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998,913.81 : 17,937,052.89 = 7,196,242.41 : x
  2. Step 2: Convert to fraction form
    12,998,913.81/17,937,052.89 = 7,196,242.41/x
  3. Step 3: Cross multiply
    12,998,913.81x = 17,937,052.89 × 7,196,242.41
  4. Step 4: Simplify right side
    12,998,913.81x = 129,079,380,717,431.08
  5. Step 5: Solve for x
    x = 129,079,380,717,431.08/12,998,913.81
  6. Step 6: Final answer
    x = 9,930,012.82

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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.