Home / 142,890,107.20-214,064,715.84-84,422,937.76

Finding the Fourth Proportional to 142,890,107.20, 214,064,715.84 and 84,422,937.76

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Solution

The fourth proportional to 142,890,107.20, 214,064,715.84 and 84,422,937.76 is: 126,474,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,890,107.20 : 214,064,715.84 = 84,422,937.76 : x
  2. Step 2: Convert to fraction form
    142,890,107.20/214,064,715.84 = 84,422,937.76/x
  3. Step 3: Cross multiply
    142,890,107.20x = 214,064,715.84 × 84,422,937.76
  4. Step 4: Simplify right side
    142,890,107.20x = 18,071,972,181,972,408
  5. Step 5: Solve for x
    x = 18,071,972,181,972,408/142,890,107.20
  6. Step 6: Final answer
    x = 126,474,621.20

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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.