Home / 643,388,101.20-965,082,151.80-177,048,623.70

Finding the Fourth Proportional to 643,388,101.20, 965,082,151.80 and 177,048,623.70

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Solution

The fourth proportional to 643,388,101.20, 965,082,151.80 and 177,048,623.70 is: 265,572,935.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,388,101.20 : 965,082,151.80 = 177,048,623.70 : x
  2. Step 2: Convert to fraction form
    643,388,101.20/965,082,151.80 = 177,048,623.70/x
  3. Step 3: Cross multiply
    643,388,101.20x = 965,082,151.80 × 177,048,623.70
  4. Step 4: Simplify right side
    643,388,101.20x = 170,866,466,733,624,448
  5. Step 5: Solve for x
    x = 170,866,466,733,624,448/643,388,101.20
  6. Step 6: Final answer
    x = 265,572,935.55

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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.