Home / 377,081,402.70-520,311,515.31-212,059,130.70

Finding the Fourth Proportional to 377,081,402.70, 520,311,515.31 and 212,059,130.70

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Solution

The fourth proportional to 377,081,402.70, 520,311,515.31 and 212,059,130.70 is: 292,607,396.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,081,402.70 : 520,311,515.31 = 212,059,130.70 : x
  2. Step 2: Convert to fraction form
    377,081,402.70/520,311,515.31 = 212,059,130.70/x
  3. Step 3: Cross multiply
    377,081,402.70x = 520,311,515.31 × 212,059,130.70
  4. Step 4: Simplify right side
    377,081,402.70x = 110,336,807,629,838,336
  5. Step 5: Solve for x
    x = 110,336,807,629,838,336/377,081,402.70
  6. Step 6: Final answer
    x = 292,607,396.81

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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.