Home / 208,548,027.20-312,934,015.20-87,391,726.40

Finding the Fourth Proportional to 208,548,027.20, 312,934,015.20 and 87,391,726.40

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Solution

The fourth proportional to 208,548,027.20, 312,934,015.20 and 87,391,726.40 is: 131,134,512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,548,027.20 : 312,934,015.20 = 87,391,726.40 : x
  2. Step 2: Convert to fraction form
    208,548,027.20/312,934,015.20 = 87,391,726.40/x
  3. Step 3: Cross multiply
    208,548,027.20x = 312,934,015.20 × 87,391,726.40
  4. Step 4: Simplify right side
    208,548,027.20x = 27,347,843,837,611,844
  5. Step 5: Solve for x
    x = 27,347,843,837,611,844/208,548,027.20
  6. Step 6: Final answer
    x = 131,134,512.30

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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.