Home / 21,555,262.57-29,741,821.83-12,386,133.85

Finding the Fourth Proportional to 21,555,262.57, 29,741,821.83 and 12,386,133.85

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Solution

The fourth proportional to 21,555,262.57, 29,741,821.83 and 12,386,133.85 is: 17,090,313.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,555,262.57 : 29,741,821.83 = 12,386,133.85 : x
  2. Step 2: Convert to fraction form
    21,555,262.57/29,741,821.83 = 12,386,133.85/x
  3. Step 3: Cross multiply
    21,555,262.57x = 29,741,821.83 × 12,386,133.85
  4. Step 4: Simplify right side
    21,555,262.57x = 368,386,186,026,970.81
  5. Step 5: Solve for x
    x = 368,386,186,026,970.81/21,555,262.57
  6. Step 6: Final answer
    x = 17,090,313.09

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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.