Home / 21,115,051.23-29,137,963.64-11,821,751.94

Finding the Fourth Proportional to 21,115,051.23, 29,137,963.64 and 11,821,751.94

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Solution

The fourth proportional to 21,115,051.23, 29,137,963.64 and 11,821,751.94 is: 16,313,565.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,115,051.23 : 29,137,963.64 = 11,821,751.94 : x
  2. Step 2: Convert to fraction form
    21,115,051.23/29,137,963.64 = 11,821,751.94/x
  3. Step 3: Cross multiply
    21,115,051.23x = 29,137,963.64 × 11,821,751.94
  4. Step 4: Simplify right side
    21,115,051.23x = 344,461,778,129,710.69
  5. Step 5: Solve for x
    x = 344,461,778,129,710.69/21,115,051.23
  6. Step 6: Final answer
    x = 16,313,565.82

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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.