Home / 426,438,558.25-642,568,593.27-350,418,400.67

Finding the Fourth Proportional to 426,438,558.25, 642,568,593.27 and 350,418,400.67

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Solution

The fourth proportional to 426,438,558.25, 642,568,593.27 and 350,418,400.67 is: 528,019,463.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,438,558.25 : 642,568,593.27 = 350,418,400.67 : x
  2. Step 2: Convert to fraction form
    426,438,558.25/642,568,593.27 = 350,418,400.67/x
  3. Step 3: Cross multiply
    426,438,558.25x = 642,568,593.27 × 350,418,400.67
  4. Step 4: Simplify right side
    426,438,558.25x = 225,167,858,774,445,120
  5. Step 5: Solve for x
    x = 225,167,858,774,445,120/426,438,558.25
  6. Step 6: Final answer
    x = 528,019,463.57

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.