Home / 816,338,787.84-1,223,861,529.60-407,184,330.24

Finding the Fourth Proportional to 816,338,787.84, 1,223,861,529.60 and 407,184,330.24

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Solution

The fourth proportional to 816,338,787.84, 1,223,861,529.60 and 407,184,330.24 is: 610,453,949.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,338,787.84 : 1,223,861,529.60 = 407,184,330.24 : x
  2. Step 2: Convert to fraction form
    816,338,787.84/1,223,861,529.60 = 407,184,330.24/x
  3. Step 3: Cross multiply
    816,338,787.84x = 1,223,861,529.60 × 407,184,330.24
  4. Step 4: Simplify right side
    816,338,787.84x = 498,337,237,236,677,888
  5. Step 5: Solve for x
    x = 498,337,237,236,677,888/816,338,787.84
  6. Step 6: Final answer
    x = 610,453,949.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.