Home / 245,667,924.84-368,505,145.20-81,905,733.90

Finding the Fourth Proportional to 245,667,924.84, 368,505,145.20 and 81,905,733.90

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Solution

The fourth proportional to 245,667,924.84, 368,505,145.20 and 81,905,733.90 is: 122,859,687.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,667,924.84 : 368,505,145.20 = 81,905,733.90 : x
  2. Step 2: Convert to fraction form
    245,667,924.84/368,505,145.20 = 81,905,733.90/x
  3. Step 3: Cross multiply
    245,667,924.84x = 368,505,145.20 × 81,905,733.90
  4. Step 4: Simplify right side
    245,667,924.84x = 30,182,684,363,532,064
  5. Step 5: Solve for x
    x = 30,182,684,363,532,064/245,667,924.84
  6. Step 6: Final answer
    x = 122,859,687.05

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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.