Home / 90,849,778.21-125,372,056.15-49,596,670.58

Finding the Fourth Proportional to 90,849,778.21, 125,372,056.15 and 49,596,670.58

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Solution

The fourth proportional to 90,849,778.21, 125,372,056.15 and 49,596,670.58 is: 68,443,057.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,849,778.21 : 125,372,056.15 = 49,596,670.58 : x
  2. Step 2: Convert to fraction form
    90,849,778.21/125,372,056.15 = 49,596,670.58/x
  3. Step 3: Cross multiply
    90,849,778.21x = 125,372,056.15 × 49,596,670.58
  4. Step 4: Simplify right side
    90,849,778.21x = 6,218,036,568,998,252
  5. Step 5: Solve for x
    x = 6,218,036,568,998,252/90,849,778.21
  6. Step 6: Final answer
    x = 68,443,057.23

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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.