Home / 201,696,656.67-278,334,037.85-112,383,986.21

Finding the Fourth Proportional to 201,696,656.67, 278,334,037.85 and 112,383,986.21

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Solution

The fourth proportional to 201,696,656.67, 278,334,037.85 and 112,383,986.21 is: 155,085,806.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,696,656.67 : 278,334,037.85 = 112,383,986.21 : x
  2. Step 2: Convert to fraction form
    201,696,656.67/278,334,037.85 = 112,383,986.21/x
  3. Step 3: Cross multiply
    201,696,656.67x = 278,334,037.85 × 112,383,986.21
  4. Step 4: Simplify right side
    201,696,656.67x = 31,280,288,669,554,432
  5. Step 5: Solve for x
    x = 31,280,288,669,554,432/201,696,656.67
  6. Step 6: Final answer
    x = 155,085,806.51

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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.