Home / 20,968,116.98-31,439,331.30-8,173,674.50

Finding the Fourth Proportional to 20,968,116.98, 31,439,331.30 and 8,173,674.50

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Solution

The fourth proportional to 20,968,116.98, 31,439,331.30 and 8,173,674.50 is: 12,255,504.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,968,116.98 : 31,439,331.30 = 8,173,674.50 : x
  2. Step 2: Convert to fraction form
    20,968,116.98/31,439,331.30 = 8,173,674.50/x
  3. Step 3: Cross multiply
    20,968,116.98x = 31,439,331.30 × 8,173,674.50
  4. Step 4: Simplify right side
    20,968,116.98x = 256,974,860,543,861.84
  5. Step 5: Solve for x
    x = 256,974,860,543,861.84/20,968,116.98
  6. Step 6: Final answer
    x = 12,255,504.91

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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.