Home / 77,082,379.84-106,380,412.12-42,281,796.34

Finding the Fourth Proportional to 77,082,379.84, 106,380,412.12 and 42,281,796.34

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Solution

The fourth proportional to 77,082,379.84, 106,380,412.12 and 42,281,796.34 is: 58,352,569.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,082,379.84 : 106,380,412.12 = 42,281,796.34 : x
  2. Step 2: Convert to fraction form
    77,082,379.84/106,380,412.12 = 42,281,796.34/x
  3. Step 3: Cross multiply
    77,082,379.84x = 106,380,412.12 × 42,281,796.34
  4. Step 4: Simplify right side
    77,082,379.84x = 4,497,954,919,410,546
  5. Step 5: Solve for x
    x = 4,497,954,919,410,546/77,082,379.84
  6. Step 6: Final answer
    x = 58,352,569.40

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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.