Home / 643,599,429.20-965,903,028.60-298,595,805.20

Finding the Fourth Proportional to 643,599,429.20, 965,903,028.60 and 298,595,805.20

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Solution

The fourth proportional to 643,599,429.20, 965,903,028.60 and 298,595,805.20 is: 448,127,483.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,599,429.20 : 965,903,028.60 = 298,595,805.20 : x
  2. Step 2: Convert to fraction form
    643,599,429.20/965,903,028.60 = 298,595,805.20/x
  3. Step 3: Cross multiply
    643,599,429.20x = 965,903,028.60 × 298,595,805.20
  4. Step 4: Simplify right side
    643,599,429.20x = 288,414,592,569,935,616
  5. Step 5: Solve for x
    x = 288,414,592,569,935,616/643,599,429.20
  6. Step 6: Final answer
    x = 448,127,483.47

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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.