Home / 21,419,678.34-29,559,669.75-11,630,535.12

Finding the Fourth Proportional to 21,419,678.34, 29,559,669.75 and 11,630,535.12

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Solution

The fourth proportional to 21,419,678.34, 29,559,669.75 and 11,630,535.12 is: 16,050,417.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,419,678.34 : 29,559,669.75 = 11,630,535.12 : x
  2. Step 2: Convert to fraction form
    21,419,678.34/29,559,669.75 = 11,630,535.12/x
  3. Step 3: Cross multiply
    21,419,678.34x = 29,559,669.75 × 11,630,535.12
  4. Step 4: Simplify right side
    21,419,678.34x = 343,794,777,162,976.62
  5. Step 5: Solve for x
    x = 343,794,777,162,976.62/21,419,678.34
  6. Step 6: Final answer
    x = 16,050,417.36

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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.