Home / 72,483,956.45-100,027,874.70-39,888,908.45

Finding the Fourth Proportional to 72,483,956.45, 100,027,874.70 and 39,888,908.45

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Solution

The fourth proportional to 72,483,956.45, 100,027,874.70 and 39,888,908.45 is: 55,046,701.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,483,956.45 : 100,027,874.70 = 39,888,908.45 : x
  2. Step 2: Convert to fraction form
    72,483,956.45/100,027,874.70 = 39,888,908.45/x
  3. Step 3: Cross multiply
    72,483,956.45x = 100,027,874.70 × 39,888,908.45
  4. Step 4: Simplify right side
    72,483,956.45x = 3,990,002,736,356,371.50
  5. Step 5: Solve for x
    x = 3,990,002,736,356,371.50/72,483,956.45
  6. Step 6: Final answer
    x = 55,046,701.81

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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.