Home / 12,436,868.36-17,170,160.82-8,151,981.32

Finding the Fourth Proportional to 12,436,868.36, 17,170,160.82 and 8,151,981.32

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Solution

The fourth proportional to 12,436,868.36, 17,170,160.82 and 8,151,981.32 is: 11,254,507.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436,868.36 : 17,170,160.82 = 8,151,981.32 : x
  2. Step 2: Convert to fraction form
    12,436,868.36/17,170,160.82 = 8,151,981.32/x
  3. Step 3: Cross multiply
    12,436,868.36x = 17,170,160.82 × 8,151,981.32
  4. Step 4: Simplify right side
    12,436,868.36x = 139,970,830,266,035.89
  5. Step 5: Solve for x
    x = 139,970,830,266,035.89/12,436,868.36
  6. Step 6: Final answer
    x = 11,254,507.66

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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.