Home / 208,496,598.77-312,763,074.56-68,395,049.82

Finding the Fourth Proportional to 208,496,598.77, 312,763,074.56 and 68,395,049.82

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Solution

The fourth proportional to 208,496,598.77, 312,763,074.56 and 68,395,049.82 is: 102,598,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,496,598.77 : 312,763,074.56 = 68,395,049.82 : x
  2. Step 2: Convert to fraction form
    208,496,598.77/312,763,074.56 = 68,395,049.82/x
  3. Step 3: Cross multiply
    208,496,598.77x = 312,763,074.56 × 68,395,049.82
  4. Step 4: Simplify right side
    208,496,598.77x = 21,391,446,066,302,076
  5. Step 5: Solve for x
    x = 21,391,446,066,302,076/208,496,598.77
  6. Step 6: Final answer
    x = 102,598,537.30

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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.