Home / 21,827,920.21-30,114,922.54-13,991,753.18

Finding the Fourth Proportional to 21,827,920.21, 30,114,922.54 and 13,991,753.18

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Solution

The fourth proportional to 21,827,920.21, 30,114,922.54 and 13,991,753.18 is: 19,303,743.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,827,920.21 : 30,114,922.54 = 13,991,753.18 : x
  2. Step 2: Convert to fraction form
    21,827,920.21/30,114,922.54 = 13,991,753.18/x
  3. Step 3: Cross multiply
    21,827,920.21x = 30,114,922.54 × 13,991,753.18
  4. Step 4: Simplify right side
    21,827,920.21x = 421,360,563,214,498.62
  5. Step 5: Solve for x
    x = 421,360,563,214,498.62/21,827,920.21
  6. Step 6: Final answer
    x = 19,303,743.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.