Home / 21,107,848.80-31,661,773.20-9,770,440.80

Finding the Fourth Proportional to 21,107,848.80, 31,661,773.20 and 9,770,440.80

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Solution

The fourth proportional to 21,107,848.80, 31,661,773.20 and 9,770,440.80 is: 14,655,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,107,848.80 : 31,661,773.20 = 9,770,440.80 : x
  2. Step 2: Convert to fraction form
    21,107,848.80/31,661,773.20 = 9,770,440.80/x
  3. Step 3: Cross multiply
    21,107,848.80x = 31,661,773.20 × 9,770,440.80
  4. Step 4: Simplify right side
    21,107,848.80x = 309,349,480,673,626.56
  5. Step 5: Solve for x
    x = 309,349,480,673,626.56/21,107,848.80
  6. Step 6: Final answer
    x = 14,655,661.20

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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.