Home / 201,961,780.70-278,719,747.33-111,434,828.93

Finding the Fourth Proportional to 201,961,780.70, 278,719,747.33 and 111,434,828.93

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Solution

The fourth proportional to 201,961,780.70, 278,719,747.33 and 111,434,828.93 is: 153,786,955.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,961,780.70 : 278,719,747.33 = 111,434,828.93 : x
  2. Step 2: Convert to fraction form
    201,961,780.70/278,719,747.33 = 111,434,828.93/x
  3. Step 3: Cross multiply
    201,961,780.70x = 278,719,747.33 × 111,434,828.93
  4. Step 4: Simplify right side
    201,961,780.70x = 31,059,087,363,131,376
  5. Step 5: Solve for x
    x = 31,059,087,363,131,376/201,961,780.70
  6. Step 6: Final answer
    x = 153,786,955.41

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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.