Home / 21,051,518.22-31,577,258.87-7,923,388.80

Finding the Fourth Proportional to 21,051,518.22, 31,577,258.87 and 7,923,388.80

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Solution

The fourth proportional to 21,051,518.22, 31,577,258.87 and 7,923,388.80 is: 11,885,076.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051,518.22 : 31,577,258.87 = 7,923,388.80 : x
  2. Step 2: Convert to fraction form
    21,051,518.22/31,577,258.87 = 7,923,388.80/x
  3. Step 3: Cross multiply
    21,051,518.22x = 31,577,258.87 × 7,923,388.80
  4. Step 4: Simplify right side
    21,051,518.22x = 250,198,899,225,641.69
  5. Step 5: Solve for x
    x = 250,198,899,225,641.69/21,051,518.22
  6. Step 6: Final answer
    x = 11,885,076.25

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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.