Home / 376,903,398.40-520,123,560.96-211,891,701.76

Finding the Fourth Proportional to 376,903,398.40, 520,123,560.96 and 211,891,701.76

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Solution

The fourth proportional to 376,903,398.40, 520,123,560.96 and 211,891,701.76 is: 292,408,789.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,903,398.40 : 520,123,560.96 = 211,891,701.76 : x
  2. Step 2: Convert to fraction form
    376,903,398.40/520,123,560.96 = 211,891,701.76/x
  3. Step 3: Cross multiply
    376,903,398.40x = 520,123,560.96 × 211,891,701.76
  4. Step 4: Simplify right side
    376,903,398.40x = 110,209,866,457,285,488
  5. Step 5: Solve for x
    x = 110,209,866,457,285,488/376,903,398.40
  6. Step 6: Final answer
    x = 292,408,789.43

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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.