Home / 61,689,482,315.78-85,143,694,491.32-40,014,486,382.64

Finding the Fourth Proportional to 61,689,482,315.78, 85,143,694,491.32 and 40,014,486,382.64

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Solution

The fourth proportional to 61,689,482,315.78, 85,143,694,491.32 and 40,014,486,382.64 is: 55,227,910,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,689,482,315.78 : 85,143,694,491.32 = 40,014,486,382.64 : x
  2. Step 2: Convert to fraction form
    61,689,482,315.78/85,143,694,491.32 = 40,014,486,382.64/x
  3. Step 3: Cross multiply
    61,689,482,315.78x = 85,143,694,491.32 × 40,014,486,382.64
  4. Step 4: Simplify right side
    61,689,482,315.78x = 3,406,981,203,789,959,135,232
  5. Step 5: Solve for x
    x = 3,406,981,203,789,959,135,232/61,689,482,315.78
  6. Step 6: Final answer
    x = 55,227,910,429.70

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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.