Home / 72,700,268.64-100,324,756.08-40,105,212

Finding the Fourth Proportional to 72,700,268.64, 100,324,756.08 and 40,105,212

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Solution

The fourth proportional to 72,700,268.64, 100,324,756.08 and 40,105,212 is: 55,344,301.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,700,268.64 : 100,324,756.08 = 40,105,212 : x
  2. Step 2: Convert to fraction form
    72,700,268.64/100,324,756.08 = 40,105,212/x
  3. Step 3: Cross multiply
    72,700,268.64x = 100,324,756.08 × 40,105,212
  4. Step 4: Simplify right side
    72,700,268.64x = 4,023,545,611,436,689
  5. Step 5: Solve for x
    x = 4,023,545,611,436,689/72,700,268.64
  6. Step 6: Final answer
    x = 55,344,301.84

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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.