Home / 115,119,038.82-172,768,103.38-80,349,563.50

Finding the Fourth Proportional to 115,119,038.82, 172,768,103.38 and 80,349,563.50

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Solution

The fourth proportional to 115,119,038.82, 172,768,103.38 and 80,349,563.50 is: 120,586,845.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,119,038.82 : 172,768,103.38 = 80,349,563.50 : x
  2. Step 2: Convert to fraction form
    115,119,038.82/172,768,103.38 = 80,349,563.50/x
  3. Step 3: Cross multiply
    115,119,038.82x = 172,768,103.38 × 80,349,563.50
  4. Step 4: Simplify right side
    115,119,038.82x = 13,881,841,693,305,874
  5. Step 5: Solve for x
    x = 13,881,841,693,305,874/115,119,038.82
  6. Step 6: Final answer
    x = 120,586,845.02

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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.