Home / 289,203,371.08-399,099,206.55-157,043,190.76

Finding the Fourth Proportional to 289,203,371.08, 399,099,206.55 and 157,043,190.76

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Solution

The fourth proportional to 289,203,371.08, 399,099,206.55 and 157,043,190.76 is: 216,718,818.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,203,371.08 : 399,099,206.55 = 157,043,190.76 : x
  2. Step 2: Convert to fraction form
    289,203,371.08/399,099,206.55 = 157,043,190.76/x
  3. Step 3: Cross multiply
    289,203,371.08x = 399,099,206.55 × 157,043,190.76
  4. Step 4: Simplify right side
    289,203,371.08x = 62,675,812,826,396,288
  5. Step 5: Solve for x
    x = 62,675,812,826,396,288/289,203,371.08
  6. Step 6: Final answer
    x = 216,718,818.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.