Home / 831,744,221.15-1,147,799,172.98-479,190,723.23

Finding the Fourth Proportional to 831,744,221.15, 1,147,799,172.98 and 479,190,723.23

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Solution

The fourth proportional to 831,744,221.15, 1,147,799,172.98 and 479,190,723.23 is: 661,278,674.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,744,221.15 : 1,147,799,172.98 = 479,190,723.23 : x
  2. Step 2: Convert to fraction form
    831,744,221.15/1,147,799,172.98 = 479,190,723.23/x
  3. Step 3: Cross multiply
    831,744,221.15x = 1,147,799,172.98 × 479,190,723.23
  4. Step 4: Simplify right side
    831,744,221.15x = 550,014,715,823,082,112
  5. Step 5: Solve for x
    x = 550,014,715,823,082,112/831,744,221.15
  6. Step 6: Final answer
    x = 661,278,674.18

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1.5x scale

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.