Home / 50,990,056.20-76,528,629.90-20,719,643.40

Finding the Fourth Proportional to 50,990,056.20, 76,528,629.90 and 20,719,643.40

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Solution

The fourth proportional to 50,990,056.20, 76,528,629.90 and 20,719,643.40 is: 31,097,159.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,990,056.20 : 76,528,629.90 = 20,719,643.40 : x
  2. Step 2: Convert to fraction form
    50,990,056.20/76,528,629.90 = 20,719,643.40/x
  3. Step 3: Cross multiply
    50,990,056.20x = 76,528,629.90 × 20,719,643.40
  4. Step 4: Simplify right side
    50,990,056.20x = 1,585,645,921,418,577.75
  5. Step 5: Solve for x
    x = 1,585,645,921,418,577.75/50,990,056.20
  6. Step 6: Final answer
    x = 31,097,159.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.