Home / 13,045,964.74-18,003,647.45-7,166,142.55

Finding the Fourth Proportional to 13,045,964.74, 18,003,647.45 and 7,166,142.55

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Solution

The fourth proportional to 13,045,964.74, 18,003,647.45 and 7,166,142.55 is: 9,889,395.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045,964.74 : 18,003,647.45 = 7,166,142.55 : x
  2. Step 2: Convert to fraction form
    13,045,964.74/18,003,647.45 = 7,166,142.55/x
  3. Step 3: Cross multiply
    13,045,964.74x = 18,003,647.45 × 7,166,142.55
  4. Step 4: Simplify right side
    13,045,964.74x = 129,016,703,985,793.41
  5. Step 5: Solve for x
    x = 129,016,703,985,793.41/13,045,964.74
  6. Step 6: Final answer
    x = 9,889,395.42

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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.