Home / 388,446,173.82-536,049,463.95-212,230,385.46

Finding the Fourth Proportional to 388,446,173.82, 536,049,463.95 and 212,230,385.46

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Solution

The fourth proportional to 388,446,173.82, 536,049,463.95 and 212,230,385.46 is: 292,874,513.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,446,173.82 : 536,049,463.95 = 212,230,385.46 : x
  2. Step 2: Convert to fraction form
    388,446,173.82/536,049,463.95 = 212,230,385.46/x
  3. Step 3: Cross multiply
    388,446,173.82x = 536,049,463.95 × 212,230,385.46
  4. Step 4: Simplify right side
    388,446,173.82x = 113,765,984,359,734,880
  5. Step 5: Solve for x
    x = 113,765,984,359,734,880/388,446,173.82
  6. Step 6: Final answer
    x = 292,874,513.97

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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.