Home / 1,129,811,493.44-1,559,158,508.40-621,195,697.28

Finding the Fourth Proportional to 1,129,811,493.44, 1,559,158,508.40 and 621,195,697.28

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Solution

The fourth proportional to 1,129,811,493.44, 1,559,158,508.40 and 621,195,697.28 is: 857,260,315.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,811,493.44 : 1,559,158,508.40 = 621,195,697.28 : x
  2. Step 2: Convert to fraction form
    1,129,811,493.44/1,559,158,508.40 = 621,195,697.28/x
  3. Step 3: Cross multiply
    1,129,811,493.44x = 1,559,158,508.40 × 621,195,697.28
  4. Step 4: Simplify right side
    1,129,811,493.44x = 968,542,556,795,582,720
  5. Step 5: Solve for x
    x = 968,542,556,795,582,720/1,129,811,493.44
  6. Step 6: Final answer
    x = 857,260,315.03

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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.