Home / 388,446,217.70-536,049,524.50-212,230,429.34

Finding the Fourth Proportional to 388,446,217.70, 536,049,524.50 and 212,230,429.34

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Solution

The fourth proportional to 388,446,217.70, 536,049,524.50 and 212,230,429.34 is: 292,874,574.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,446,217.70 : 536,049,524.50 = 212,230,429.34 : x
  2. Step 2: Convert to fraction form
    388,446,217.70/536,049,524.50 = 212,230,429.34/x
  3. Step 3: Cross multiply
    388,446,217.70x = 536,049,524.50 × 212,230,429.34
  4. Step 4: Simplify right side
    388,446,217.70x = 113,766,020,728,927,024
  5. Step 5: Solve for x
    x = 113,766,020,728,927,024/388,446,217.70
  6. Step 6: Final answer
    x = 292,874,574.51

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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.