Home / 137,640,671.20-189,936,898.32-75,749,180.32

Finding the Fourth Proportional to 137,640,671.20, 189,936,898.32 and 75,749,180.32

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Solution

The fourth proportional to 137,640,671.20, 189,936,898.32 and 75,749,180.32 is: 104,529,891.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,640,671.20 : 189,936,898.32 = 75,749,180.32 : x
  2. Step 2: Convert to fraction form
    137,640,671.20/189,936,898.32 = 75,749,180.32/x
  3. Step 3: Cross multiply
    137,640,671.20x = 189,936,898.32 × 75,749,180.32
  4. Step 4: Simplify right side
    137,640,671.20x = 14,387,564,360,263,184
  5. Step 5: Solve for x
    x = 14,387,564,360,263,184/137,640,671.20
  6. Step 6: Final answer
    x = 104,529,891.02

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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.