Home / 21,291,214.80-31,936,822.20-11,701,657.20

Finding the Fourth Proportional to 21,291,214.80, 31,936,822.20 and 11,701,657.20

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Solution

The fourth proportional to 21,291,214.80, 31,936,822.20 and 11,701,657.20 is: 17,552,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,291,214.80 : 31,936,822.20 = 11,701,657.20 : x
  2. Step 2: Convert to fraction form
    21,291,214.80/31,936,822.20 = 11,701,657.20/x
  3. Step 3: Cross multiply
    21,291,214.80x = 31,936,822.20 × 11,701,657.20
  4. Step 4: Simplify right side
    21,291,214.80x = 373,713,745,441,749.81
  5. Step 5: Solve for x
    x = 373,713,745,441,749.81/21,291,214.80
  6. Step 6: Final answer
    x = 17,552,485.80

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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.