Home / 20,958,440.33-31,435,859.54-12,758,954.35

Finding the Fourth Proportional to 20,958,440.33, 31,435,859.54 and 12,758,954.35

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Solution

The fourth proportional to 20,958,440.33, 31,435,859.54 and 12,758,954.35 is: 19,137,335.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958,440.33 : 31,435,859.54 = 12,758,954.35 : x
  2. Step 2: Convert to fraction form
    20,958,440.33/31,435,859.54 = 12,758,954.35/x
  3. Step 3: Cross multiply
    20,958,440.33x = 31,435,859.54 × 12,758,954.35
  4. Step 4: Simplify right side
    20,958,440.33x = 401,088,696,895,064.25
  5. Step 5: Solve for x
    x = 401,088,696,895,064.25/20,958,440.33
  6. Step 6: Final answer
    x = 19,137,335.16

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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.