Home / 289,706,921.40-434,560,382.10-263,347,447.80

Finding the Fourth Proportional to 289,706,921.40, 434,560,382.10 and 263,347,447.80

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Solution

The fourth proportional to 289,706,921.40, 434,560,382.10 and 263,347,447.80 is: 395,021,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,706,921.40 : 434,560,382.10 = 263,347,447.80 : x
  2. Step 2: Convert to fraction form
    289,706,921.40/434,560,382.10 = 263,347,447.80/x
  3. Step 3: Cross multiply
    289,706,921.40x = 434,560,382.10 × 263,347,447.80
  4. Step 4: Simplify right side
    289,706,921.40x = 114,440,367,541,027,808
  5. Step 5: Solve for x
    x = 114,440,367,541,027,808/289,706,921.40
  6. Step 6: Final answer
    x = 395,021,171.70

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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.