Home / 137,280,997.80-189,459,460.44-77,752,882.80

Finding the Fourth Proportional to 137,280,997.80, 189,459,460.44 and 77,752,882.80

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Solution

The fourth proportional to 137,280,997.80, 189,459,460.44 and 77,752,882.80 is: 107,305,595.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,280,997.80 : 189,459,460.44 = 77,752,882.80 : x
  2. Step 2: Convert to fraction form
    137,280,997.80/189,459,460.44 = 77,752,882.80/x
  3. Step 3: Cross multiply
    137,280,997.80x = 189,459,460.44 × 77,752,882.80
  4. Step 4: Simplify right side
    137,280,997.80x = 14,731,019,222,942,556
  5. Step 5: Solve for x
    x = 14,731,019,222,942,556/137,280,997.80
  6. Step 6: Final answer
    x = 107,305,595.52

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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.