Home / 289,706,891.40-434,560,337.10-136,651,883.40

Finding the Fourth Proportional to 289,706,891.40, 434,560,337.10 and 136,651,883.40

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Solution

The fourth proportional to 289,706,891.40, 434,560,337.10 and 136,651,883.40 is: 204,977,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,706,891.40 : 434,560,337.10 = 136,651,883.40 : x
  2. Step 2: Convert to fraction form
    289,706,891.40/434,560,337.10 = 136,651,883.40/x
  3. Step 3: Cross multiply
    289,706,891.40x = 434,560,337.10 × 136,651,883.40
  4. Step 4: Simplify right side
    289,706,891.40x = 59,383,488,515,653,896
  5. Step 5: Solve for x
    x = 59,383,488,515,653,896/289,706,891.40
  6. Step 6: Final answer
    x = 204,977,825.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.