Home / 21,748,047.90-30,012,414.48-11,959,123.38

Finding the Fourth Proportional to 21,748,047.90, 30,012,414.48 and 11,959,123.38

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Solution

The fourth proportional to 21,748,047.90, 30,012,414.48 and 11,959,123.38 is: 16,503,649.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,748,047.90 : 30,012,414.48 = 11,959,123.38 : x
  2. Step 2: Convert to fraction form
    21,748,047.90/30,012,414.48 = 11,959,123.38/x
  3. Step 3: Cross multiply
    21,748,047.90x = 30,012,414.48 × 11,959,123.38
  4. Step 4: Simplify right side
    21,748,047.90x = 358,922,167,698,018.56
  5. Step 5: Solve for x
    x = 358,922,167,698,018.56/21,748,047.90
  6. Step 6: Final answer
    x = 16,503,649.86

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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.