Home / 447,888,563.57-618,351,352.43-398,191,670.67

Finding the Fourth Proportional to 447,888,563.57, 618,351,352.43 and 398,191,670.67

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Solution

The fourth proportional to 447,888,563.57, 618,351,352.43 and 398,191,670.67 is: 549,740,221.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,888,563.57 : 618,351,352.43 = 398,191,670.67 : x
  2. Step 2: Convert to fraction form
    447,888,563.57/618,351,352.43 = 398,191,670.67/x
  3. Step 3: Cross multiply
    447,888,563.57x = 618,351,352.43 × 398,191,670.67
  4. Step 4: Simplify right side
    447,888,563.57x = 246,222,358,085,581,216
  5. Step 5: Solve for x
    x = 246,222,358,085,581,216/447,888,563.57
  6. Step 6: Final answer
    x = 549,740,221.36

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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.