Home / 5,185,261.80-7,777,892.70-1,399,127.40

Finding the Fourth Proportional to 5,185,261.80, 7,777,892.70 and 1,399,127.40

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Solution

The fourth proportional to 5,185,261.80, 7,777,892.70 and 1,399,127.40 is: 2,098,691.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185,261.80 : 7,777,892.70 = 1,399,127.40 : x
  2. Step 2: Convert to fraction form
    5,185,261.80/7,777,892.70 = 1,399,127.40/x
  3. Step 3: Cross multiply
    5,185,261.80x = 7,777,892.70 × 1,399,127.40
  4. Step 4: Simplify right side
    5,185,261.80x = 10,882,262,790,829.98
  5. Step 5: Solve for x
    x = 10,882,262,790,829.98/5,185,261.80
  6. Step 6: Final answer
    x = 2,098,691.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.