Home / 376,903,402.40-520,123,566.48-211,891,705.76

Finding the Fourth Proportional to 376,903,402.40, 520,123,566.48 and 211,891,705.76

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Solution

The fourth proportional to 376,903,402.40, 520,123,566.48 and 211,891,705.76 is: 292,408,794.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,903,402.40 : 520,123,566.48 = 211,891,705.76 : x
  2. Step 2: Convert to fraction form
    376,903,402.40/520,123,566.48 = 211,891,705.76/x
  3. Step 3: Cross multiply
    376,903,402.40x = 520,123,566.48 × 211,891,705.76
  4. Step 4: Simplify right side
    376,903,402.40x = 110,209,869,707,421,952
  5. Step 5: Solve for x
    x = 110,209,869,707,421,952/376,903,402.40
  6. Step 6: Final answer
    x = 292,408,794.95

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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.