Home / 289,707,006.40-434,560,509.60-136,651,998.40

Finding the Fourth Proportional to 289,707,006.40, 434,560,509.60 and 136,651,998.40

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Solution

The fourth proportional to 289,707,006.40, 434,560,509.60 and 136,651,998.40 is: 204,977,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,707,006.40 : 434,560,509.60 = 136,651,998.40 : x
  2. Step 2: Convert to fraction form
    289,707,006.40/434,560,509.60 = 136,651,998.40/x
  3. Step 3: Cross multiply
    289,707,006.40x = 434,560,509.60 × 136,651,998.40
  4. Step 4: Simplify right side
    289,707,006.40x = 59,383,562,062,562,392
  5. Step 5: Solve for x
    x = 59,383,562,062,562,392/289,707,006.40
  6. Step 6: Final answer
    x = 204,977,997.60

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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.