Home / 77,281,731.40-115,936,593.90-38,846,518.60

Finding the Fourth Proportional to 77,281,731.40, 115,936,593.90 and 38,846,518.60

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Solution

The fourth proportional to 77,281,731.40, 115,936,593.90 and 38,846,518.60 is: 58,276,813.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,281,731.40 : 115,936,593.90 = 38,846,518.60 : x
  2. Step 2: Convert to fraction form
    77,281,731.40/115,936,593.90 = 38,846,518.60/x
  3. Step 3: Cross multiply
    77,281,731.40x = 115,936,593.90 × 38,846,518.60
  4. Step 4: Simplify right side
    77,281,731.40x = 4,503,733,051,356,997
  5. Step 5: Solve for x
    x = 4,503,733,051,356,997/77,281,731.40
  6. Step 6: Final answer
    x = 58,276,813.55

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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.