Home / 289,203,370.08-399,099,205.17-157,043,189.76

Finding the Fourth Proportional to 289,203,370.08, 399,099,205.17 and 157,043,189.76

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Solution

The fourth proportional to 289,203,370.08, 399,099,205.17 and 157,043,189.76 is: 216,718,816.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,203,370.08 : 399,099,205.17 = 157,043,189.76 : x
  2. Step 2: Convert to fraction form
    289,203,370.08/399,099,205.17 = 157,043,189.76/x
  3. Step 3: Cross multiply
    289,203,370.08x = 399,099,205.17 × 157,043,189.76
  4. Step 4: Simplify right side
    289,203,370.08x = 62,675,812,210,577,480
  5. Step 5: Solve for x
    x = 62,675,812,210,577,480/289,203,370.08
  6. Step 6: Final answer
    x = 216,718,816.91

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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.