Home / 21,212,642.14-31,805,941.17-8,243,649.96

Finding the Fourth Proportional to 21,212,642.14, 31,805,941.17 and 8,243,649.96

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Solution

The fourth proportional to 21,212,642.14, 31,805,941.17 and 8,243,649.96 is: 12,360,414.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212,642.14 : 31,805,941.17 = 8,243,649.96 : x
  2. Step 2: Convert to fraction form
    21,212,642.14/31,805,941.17 = 8,243,649.96/x
  3. Step 3: Cross multiply
    21,212,642.14x = 31,805,941.17 × 8,243,649.96
  4. Step 4: Simplify right side
    21,212,642.14x = 262,197,045,565,474.25
  5. Step 5: Solve for x
    x = 262,197,045,565,474.25/21,212,642.14
  6. Step 6: Final answer
    x = 12,360,414.32

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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.