Home / 201,852,367.11-278,556,378.57-109,032,875.46

Finding the Fourth Proportional to 201,852,367.11, 278,556,378.57 and 109,032,875.46

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Solution

The fourth proportional to 201,852,367.11, 278,556,378.57 and 109,032,875.46 is: 150,465,428.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,852,367.11 : 278,556,378.57 = 109,032,875.46 : x
  2. Step 2: Convert to fraction form
    201,852,367.11/278,556,378.57 = 109,032,875.46/x
  3. Step 3: Cross multiply
    201,852,367.11x = 278,556,378.57 × 109,032,875.46
  4. Step 4: Simplify right side
    201,852,367.11x = 30,371,802,933,211,420
  5. Step 5: Solve for x
    x = 30,371,802,933,211,420/201,852,367.11
  6. Step 6: Final answer
    x = 150,465,428.61

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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.