Home / 21,271,082.90-31,904,656.04-5,918,605.34

Finding the Fourth Proportional to 21,271,082.90, 31,904,656.04 and 5,918,605.34

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Solution

The fourth proportional to 21,271,082.90, 31,904,656.04 and 5,918,605.34 is: 8,877,360.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,271,082.90 : 31,904,656.04 = 5,918,605.34 : x
  2. Step 2: Convert to fraction form
    21,271,082.90/31,904,656.04 = 5,918,605.34/x
  3. Step 3: Cross multiply
    21,271,082.90x = 31,904,656.04 × 5,918,605.34
  4. Step 4: Simplify right side
    21,271,082.90x = 188,831,067,420,090.94
  5. Step 5: Solve for x
    x = 188,831,067,420,090.94/21,271,082.90
  6. Step 6: Final answer
    x = 8,877,360.33

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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.