Home / 201,852,371.38-278,556,384.45-109,032,879.70

Finding the Fourth Proportional to 201,852,371.38, 278,556,384.45 and 109,032,879.70

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Solution

The fourth proportional to 201,852,371.38, 278,556,384.45 and 109,032,879.70 is: 150,465,434.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,852,371.38 : 278,556,384.45 = 109,032,879.70 : x
  2. Step 2: Convert to fraction form
    201,852,371.38/278,556,384.45 = 109,032,879.70/x
  3. Step 3: Cross multiply
    201,852,371.38x = 278,556,384.45 × 109,032,879.70
  4. Step 4: Simplify right side
    201,852,371.38x = 30,371,804,755,403,800
  5. Step 5: Solve for x
    x = 30,371,804,755,403,800/201,852,371.38
  6. Step 6: Final answer
    x = 150,465,434.45

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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.