Home / 12,921,044.01-17,831,421.09-7,120,199.42

Finding the Fourth Proportional to 12,921,044.01, 17,831,421.09 and 7,120,199.42

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Solution

The fourth proportional to 12,921,044.01, 17,831,421.09 and 7,120,199.42 is: 9,826,084.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,044.01 : 17,831,421.09 = 7,120,199.42 : x
  2. Step 2: Convert to fraction form
    12,921,044.01/17,831,421.09 = 7,120,199.42/x
  3. Step 3: Cross multiply
    12,921,044.01x = 17,831,421.09 × 7,120,199.42
  4. Step 4: Simplify right side
    12,921,044.01x = 126,963,274,147,372.33
  5. Step 5: Solve for x
    x = 126,963,274,147,372.33/12,921,044.01
  6. Step 6: Final answer
    x = 9,826,084.80

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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.