Home / 289,706,866.40-434,560,299.60-136,651,858.40

Finding the Fourth Proportional to 289,706,866.40, 434,560,299.60 and 136,651,858.40

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Solution

The fourth proportional to 289,706,866.40, 434,560,299.60 and 136,651,858.40 is: 204,977,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,706,866.40 : 434,560,299.60 = 136,651,858.40 : x
  2. Step 2: Convert to fraction form
    289,706,866.40/434,560,299.60 = 136,651,858.40/x
  3. Step 3: Cross multiply
    289,706,866.40x = 434,560,299.60 × 136,651,858.40
  4. Step 4: Simplify right side
    289,706,866.40x = 59,383,472,527,200,784
  5. Step 5: Solve for x
    x = 59,383,472,527,200,784/289,706,866.40
  6. Step 6: Final answer
    x = 204,977,787.60

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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.