Home / 72,895,765.20-100,596,336.28-39,858,148.56

Finding the Fourth Proportional to 72,895,765.20, 100,596,336.28 and 39,858,148.56

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Solution

The fourth proportional to 72,895,765.20, 100,596,336.28 and 39,858,148.56 is: 55,004,343.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,895,765.20 : 100,596,336.28 = 39,858,148.56 : x
  2. Step 2: Convert to fraction form
    72,895,765.20/100,596,336.28 = 39,858,148.56/x
  3. Step 3: Cross multiply
    72,895,765.20x = 100,596,336.28 × 39,858,148.56
  4. Step 4: Simplify right side
    72,895,765.20x = 4,009,583,716,039,958
  5. Step 5: Solve for x
    x = 4,009,583,716,039,958/72,895,765.20
  6. Step 6: Final answer
    x = 55,004,343.60

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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.