Home / 21,555,253.66-29,741,809.56-12,386,124.94

Finding the Fourth Proportional to 21,555,253.66, 29,741,809.56 and 12,386,124.94

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Solution

The fourth proportional to 21,555,253.66, 29,741,809.56 and 12,386,124.94 is: 17,090,300.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,555,253.66 : 29,741,809.56 = 12,386,124.94 : x
  2. Step 2: Convert to fraction form
    21,555,253.66/29,741,809.56 = 12,386,124.94/x
  3. Step 3: Cross multiply
    21,555,253.66x = 29,741,809.56 × 12,386,124.94
  4. Step 4: Simplify right side
    21,555,253.66x = 368,385,769,173,896.69
  5. Step 5: Solve for x
    x = 368,385,769,173,896.69/21,555,253.66
  6. Step 6: Final answer
    x = 17,090,300.81

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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.