Home / 388,447,360.38-536,051,100.87-212,231,570.94

Finding the Fourth Proportional to 388,447,360.38, 536,051,100.87 and 212,231,570.94

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Solution

The fourth proportional to 388,447,360.38, 536,051,100.87 and 212,231,570.94 is: 292,876,149.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,447,360.38 : 536,051,100.87 = 212,231,570.94 : x
  2. Step 2: Convert to fraction form
    388,447,360.38/536,051,100.87 = 212,231,570.94/x
  3. Step 3: Cross multiply
    388,447,360.38x = 536,051,100.87 × 212,231,570.94
  4. Step 4: Simplify right side
    388,447,360.38x = 113,766,967,241,756,496
  5. Step 5: Solve for x
    x = 113,766,967,241,756,496/388,447,360.38
  6. Step 6: Final answer
    x = 292,876,149.63

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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.