Home / 140,623,993.73-210,940,774.41-66,809,678.74

Finding the Fourth Proportional to 140,623,993.73, 210,940,774.41 and 66,809,678.74

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Solution

The fourth proportional to 140,623,993.73, 210,940,774.41 and 66,809,678.74 is: 100,216,790.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,623,993.73 : 210,940,774.41 = 66,809,678.74 : x
  2. Step 2: Convert to fraction form
    140,623,993.73/210,940,774.41 = 66,809,678.74/x
  3. Step 3: Cross multiply
    140,623,993.73x = 210,940,774.41 × 66,809,678.74
  4. Step 4: Simplify right side
    140,623,993.73x = 14,092,885,370,971,560
  5. Step 5: Solve for x
    x = 14,092,885,370,971,560/140,623,993.73
  6. Step 6: Final answer
    x = 100,216,790.87

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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.