Home / 137,640,675.20-189,936,903.84-75,749,184.32

Finding the Fourth Proportional to 137,640,675.20, 189,936,903.84 and 75,749,184.32

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Solution

The fourth proportional to 137,640,675.20, 189,936,903.84 and 75,749,184.32 is: 104,529,896.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,640,675.20 : 189,936,903.84 = 75,749,184.32 : x
  2. Step 2: Convert to fraction form
    137,640,675.20/189,936,903.84 = 75,749,184.32/x
  3. Step 3: Cross multiply
    137,640,675.20x = 189,936,903.84 × 75,749,184.32
  4. Step 4: Simplify right side
    137,640,675.20x = 14,387,565,538,146,274
  5. Step 5: Solve for x
    x = 14,387,565,538,146,274/137,640,675.20
  6. Step 6: Final answer
    x = 104,529,896.54

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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.