Home / 216,660,434.72-298,991,979.43-117,541,182.11

Finding the Fourth Proportional to 216,660,434.72, 298,991,979.43 and 117,541,182.11

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Solution

The fourth proportional to 216,660,434.72, 298,991,979.43 and 117,541,182.11 is: 162,207,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,660,434.72 : 298,991,979.43 = 117,541,182.11 : x
  2. Step 2: Convert to fraction form
    216,660,434.72/298,991,979.43 = 117,541,182.11/x
  3. Step 3: Cross multiply
    216,660,434.72x = 298,991,979.43 × 117,541,182.11
  4. Step 4: Simplify right side
    216,660,434.72x = 35,143,870,701,822,192
  5. Step 5: Solve for x
    x = 35,143,870,701,822,192/216,660,434.72
  6. Step 6: Final answer
    x = 162,207,145.70

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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.