Home / 14,120,669.16-21,180,969-7,969,862.52

Finding the Fourth Proportional to 14,120,669.16, 21,180,969 and 7,969,862.52

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Solution

The fourth proportional to 14,120,669.16, 21,180,969 and 7,969,862.52 is: 11,954,774.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120,669.16 : 21,180,969 = 7,969,862.52 : x
  2. Step 2: Convert to fraction form
    14,120,669.16/21,180,969 = 7,969,862.52/x
  3. Step 3: Cross multiply
    14,120,669.16x = 21,180,969 × 7,969,862.52
  4. Step 4: Simplify right side
    14,120,669.16x = 168,809,410,970,381.88
  5. Step 5: Solve for x
    x = 168,809,410,970,381.88/14,120,669.16
  6. Step 6: Final answer
    x = 11,954,774.17

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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.