Home / 21,294,967.80-31,942,451.70-6,918,504.60

Finding the Fourth Proportional to 21,294,967.80, 31,942,451.70 and 6,918,504.60

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Solution

The fourth proportional to 21,294,967.80, 31,942,451.70 and 6,918,504.60 is: 10,377,756.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,967.80 : 31,942,451.70 = 6,918,504.60 : x
  2. Step 2: Convert to fraction form
    21,294,967.80/31,942,451.70 = 6,918,504.60/x
  3. Step 3: Cross multiply
    21,294,967.80x = 31,942,451.70 × 6,918,504.60
  4. Step 4: Simplify right side
    21,294,967.80x = 220,993,999,021,727.81
  5. Step 5: Solve for x
    x = 220,993,999,021,727.81/21,294,967.80
  6. Step 6: Final answer
    x = 10,377,756.90

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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.