Home / 976,419,447.84-1,347,812,418.96-646,500,875.04

Finding the Fourth Proportional to 976,419,447.84, 1,347,812,418.96 and 646,500,875.04

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Solution

The fourth proportional to 976,419,447.84, 1,347,812,418.96 and 646,500,875.04 is: 892,405,318.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,419,447.84 : 1,347,812,418.96 = 646,500,875.04 : x
  2. Step 2: Convert to fraction form
    976,419,447.84/1,347,812,418.96 = 646,500,875.04/x
  3. Step 3: Cross multiply
    976,419,447.84x = 1,347,812,418.96 × 646,500,875.04
  4. Step 4: Simplify right side
    976,419,447.84x = 871,361,908,247,419,008
  5. Step 5: Solve for x
    x = 871,361,908,247,419,008/976,419,447.84
  6. Step 6: Final answer
    x = 892,405,318.41

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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.