Home / 693,430,408.85-956,933,733.92-380,157,896.77

Finding the Fourth Proportional to 693,430,408.85, 956,933,733.92 and 380,157,896.77

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Solution

The fourth proportional to 693,430,408.85, 956,933,733.92 and 380,157,896.77 is: 524,617,771.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,430,408.85 : 956,933,733.92 = 380,157,896.77 : x
  2. Step 2: Convert to fraction form
    693,430,408.85/956,933,733.92 = 380,157,896.77/x
  3. Step 3: Cross multiply
    693,430,408.85x = 956,933,733.92 × 380,157,896.77
  4. Step 4: Simplify right side
    693,430,408.85x = 363,785,915,630,996,864
  5. Step 5: Solve for x
    x = 363,785,915,630,996,864/693,430,408.85
  6. Step 6: Final answer
    x = 524,617,771.29

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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.