Home / 72,482,238,556.43-100,028,589,378.64-40,367,595,561.09

Finding the Fourth Proportional to 72,482,238,556.43, 100,028,589,378.64 and 40,367,595,561.09

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Solution

The fourth proportional to 72,482,238,556.43, 100,028,589,378.64 and 40,367,595,561.09 is: 55,709,008,455.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,482,238,556.43 : 100,028,589,378.64 = 40,367,595,561.09 : x
  2. Step 2: Convert to fraction form
    72,482,238,556.43/100,028,589,378.64 = 40,367,595,561.09/x
  3. Step 3: Cross multiply
    72,482,238,556.43x = 100,028,589,378.64 × 40,367,595,561.09
  4. Step 4: Simplify right side
    72,482,238,556.43x = 4,037,913,640,583,281,770,496
  5. Step 5: Solve for x
    x = 4,037,913,640,583,281,770,496/72,482,238,556.43
  6. Step 6: Final answer
    x = 55,709,008,455.08

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1.5x scale

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.