Home / 72,483,742.88-100,027,579.20-39,888,694.88

Finding the Fourth Proportional to 72,483,742.88, 100,027,579.20 and 39,888,694.88

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Solution

The fourth proportional to 72,483,742.88, 100,027,579.20 and 39,888,694.88 is: 55,046,406.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,483,742.88 : 100,027,579.20 = 39,888,694.88 : x
  2. Step 2: Convert to fraction form
    72,483,742.88/100,027,579.20 = 39,888,694.88/x
  3. Step 3: Cross multiply
    72,483,742.88x = 100,027,579.20 × 39,888,694.88
  4. Step 4: Simplify right side
    72,483,742.88x = 3,989,969,586,293,835
  5. Step 5: Solve for x
    x = 3,989,969,586,293,835/72,483,742.88
  6. Step 6: Final answer
    x = 55,046,406.65

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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.