Home / 12,999,616.66-17,939,459.93-7,198,398.30

Finding the Fourth Proportional to 12,999,616.66, 17,939,459.93 and 7,198,398.30

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Solution

The fourth proportional to 12,999,616.66, 17,939,459.93 and 7,198,398.30 is: 9,933,783.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,616.66 : 17,939,459.93 = 7,198,398.30 : x
  2. Step 2: Convert to fraction form
    12,999,616.66/17,939,459.93 = 7,198,398.30/x
  3. Step 3: Cross multiply
    12,999,616.66x = 17,939,459.93 × 7,198,398.30
  4. Step 4: Simplify right side
    12,999,616.66x = 129,135,377,863,030.11
  5. Step 5: Solve for x
    x = 129,135,377,863,030.11/12,999,616.66
  6. Step 6: Final answer
    x = 9,933,783.53

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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.