Home / 21,064,998.72-31,600,030.68-7,415,310.36

Finding the Fourth Proportional to 21,064,998.72, 31,600,030.68 and 7,415,310.36

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Solution

The fourth proportional to 21,064,998.72, 31,600,030.68 and 7,415,310.36 is: 11,123,857.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064,998.72 : 31,600,030.68 = 7,415,310.36 : x
  2. Step 2: Convert to fraction form
    21,064,998.72/31,600,030.68 = 7,415,310.36/x
  3. Step 3: Cross multiply
    21,064,998.72x = 31,600,030.68 × 7,415,310.36
  4. Step 4: Simplify right side
    21,064,998.72x = 234,324,034,877,721.84
  5. Step 5: Solve for x
    x = 234,324,034,877,721.84/21,064,998.72
  6. Step 6: Final answer
    x = 11,123,857.07

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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.