Home / 5,221,072.11-7,831,985.63-2,185,384.89

Finding the Fourth Proportional to 5,221,072.11, 7,831,985.63 and 2,185,384.89

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Solution

The fourth proportional to 5,221,072.11, 7,831,985.63 and 2,185,384.89 is: 3,278,235.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221,072.11 : 7,831,985.63 = 2,185,384.89 : x
  2. Step 2: Convert to fraction form
    5,221,072.11/7,831,985.63 = 2,185,384.89/x
  3. Step 3: Cross multiply
    5,221,072.11x = 7,831,985.63 × 2,185,384.89
  4. Step 4: Simplify right side
    5,221,072.11x = 17,115,903,043,572.21
  5. Step 5: Solve for x
    x = 17,115,903,043,572.21/5,221,072.11
  6. Step 6: Final answer
    x = 3,278,235.33

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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.