Home / 112,382,764.93-155,113,216.95-68,320,423

Finding the Fourth Proportional to 112,382,764.93, 155,113,216.95 and 68,320,423

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Solution

The fourth proportional to 112,382,764.93, 155,113,216.95 and 68,320,423 is: 94,297,382.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,382,764.93 : 155,113,216.95 = 68,320,423 : x
  2. Step 2: Convert to fraction form
    112,382,764.93/155,113,216.95 = 68,320,423/x
  3. Step 3: Cross multiply
    112,382,764.93x = 155,113,216.95 × 68,320,423
  4. Step 4: Simplify right side
    112,382,764.93x = 10,597,400,594,914,770
  5. Step 5: Solve for x
    x = 10,597,400,594,914,770/112,382,764.93
  6. Step 6: Final answer
    x = 94,297,382.71

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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.