Home / 912,070,382.72-1,258,623,408.20-494,373,699.96

Finding the Fourth Proportional to 912,070,382.72, 1,258,623,408.20 and 494,373,699.96

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Solution

The fourth proportional to 912,070,382.72, 1,258,623,408.20 and 494,373,699.96 is: 682,217,428.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,070,382.72 : 1,258,623,408.20 = 494,373,699.96 : x
  2. Step 2: Convert to fraction form
    912,070,382.72/1,258,623,408.20 = 494,373,699.96/x
  3. Step 3: Cross multiply
    912,070,382.72x = 1,258,623,408.20 × 494,373,699.96
  4. Step 4: Simplify right side
    912,070,382.72x = 622,230,311,168,099,456
  5. Step 5: Solve for x
    x = 622,230,311,168,099,456/912,070,382.72
  6. Step 6: Final answer
    x = 682,217,428.56

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1.5x scale

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.