Home / 140,629,918.94-210,774,817.29-72,435,409.82

Finding the Fourth Proportional to 140,629,918.94, 210,774,817.29 and 72,435,409.82

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Solution

The fourth proportional to 140,629,918.94, 210,774,817.29 and 72,435,409.82 is: 108,565,519.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,629,918.94 : 210,774,817.29 = 72,435,409.82 : x
  2. Step 2: Convert to fraction form
    140,629,918.94/210,774,817.29 = 72,435,409.82/x
  3. Step 3: Cross multiply
    140,629,918.94x = 210,774,817.29 × 72,435,409.82
  4. Step 4: Simplify right side
    140,629,918.94x = 15,267,560,269,737,124
  5. Step 5: Solve for x
    x = 15,267,560,269,737,124/140,629,918.94
  6. Step 6: Final answer
    x = 108,565,519.95

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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.