Home / 731,378,818.82-1,009,253,082.21-401,375,215.46

Finding the Fourth Proportional to 731,378,818.82, 1,009,253,082.21 and 401,375,215.46

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Solution

The fourth proportional to 731,378,818.82, 1,009,253,082.21 and 401,375,215.46 is: 553,870,529.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,378,818.82 : 1,009,253,082.21 = 401,375,215.46 : x
  2. Step 2: Convert to fraction form
    731,378,818.82/1,009,253,082.21 = 401,375,215.46/x
  3. Step 3: Cross multiply
    731,378,818.82x = 1,009,253,082.21 × 401,375,215.46
  4. Step 4: Simplify right side
    731,378,818.82x = 405,089,173,325,707,840
  5. Step 5: Solve for x
    x = 405,089,173,325,707,840/731,378,818.82
  6. Step 6: Final answer
    x = 553,870,529.06

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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.