Home / 208,135,877.88-312,082,803.27-78,753,466.38

Finding the Fourth Proportional to 208,135,877.88, 312,082,803.27 and 78,753,466.38

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Solution

The fourth proportional to 208,135,877.88, 312,082,803.27 and 78,753,466.38 is: 118,084,411.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,135,877.88 : 312,082,803.27 = 78,753,466.38 : x
  2. Step 2: Convert to fraction form
    208,135,877.88/312,082,803.27 = 78,753,466.38/x
  3. Step 3: Cross multiply
    208,135,877.88x = 312,082,803.27 × 78,753,466.38
  4. Step 4: Simplify right side
    208,135,877.88x = 24,577,602,555,100,096
  5. Step 5: Solve for x
    x = 24,577,602,555,100,096/208,135,877.88
  6. Step 6: Final answer
    x = 118,084,411.04

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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.