Home / 376,903,400.40-520,123,563.72-211,891,703.76

Finding the Fourth Proportional to 376,903,400.40, 520,123,563.72 and 211,891,703.76

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Solution

The fourth proportional to 376,903,400.40, 520,123,563.72 and 211,891,703.76 is: 292,408,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,903,400.40 : 520,123,563.72 = 211,891,703.76 : x
  2. Step 2: Convert to fraction form
    376,903,400.40/520,123,563.72 = 211,891,703.76/x
  3. Step 3: Cross multiply
    376,903,400.40x = 520,123,563.72 × 211,891,703.76
  4. Step 4: Simplify right side
    376,903,400.40x = 110,209,868,082,353,728
  5. Step 5: Solve for x
    x = 110,209,868,082,353,728/376,903,400.40
  6. Step 6: Final answer
    x = 292,408,792.19

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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.