Home / 21,555,267.26-29,741,828.39-12,386,138.54

Finding the Fourth Proportional to 21,555,267.26, 29,741,828.39 and 12,386,138.54

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Solution

The fourth proportional to 21,555,267.26, 29,741,828.39 and 12,386,138.54 is: 17,090,319.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,555,267.26 : 29,741,828.39 = 12,386,138.54 : x
  2. Step 2: Convert to fraction form
    21,555,267.26/29,741,828.39 = 12,386,138.54/x
  3. Step 3: Cross multiply
    21,555,267.26x = 29,741,828.39 × 12,386,138.54
  4. Step 4: Simplify right side
    21,555,267.26x = 368,386,406,871,445.12
  5. Step 5: Solve for x
    x = 368,386,406,871,445.12/21,555,267.26
  6. Step 6: Final answer
    x = 17,090,319.62

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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.