Home / 50,989,813.20-76,528,265.40-20,719,400.40

Finding the Fourth Proportional to 50,989,813.20, 76,528,265.40 and 20,719,400.40

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Solution

The fourth proportional to 50,989,813.20, 76,528,265.40 and 20,719,400.40 is: 31,096,795.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,989,813.20 : 76,528,265.40 = 20,719,400.40 : x
  2. Step 2: Convert to fraction form
    50,989,813.20/76,528,265.40 = 20,719,400.40/x
  3. Step 3: Cross multiply
    50,989,813.20x = 76,528,265.40 × 20,719,400.40
  4. Step 4: Simplify right side
    50,989,813.20x = 1,585,619,772,740,066.25
  5. Step 5: Solve for x
    x = 1,585,619,772,740,066.25/50,989,813.20
  6. Step 6: Final answer
    x = 31,096,795.09

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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.