Home / 465,477,145.44-642,971,626.88-345,019,327.92

Finding the Fourth Proportional to 465,477,145.44, 642,971,626.88 and 345,019,327.92

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Solution

The fourth proportional to 465,477,145.44, 642,971,626.88 and 345,019,327.92 is: 476,581,161.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,477,145.44 : 642,971,626.88 = 345,019,327.92 : x
  2. Step 2: Convert to fraction form
    465,477,145.44/642,971,626.88 = 345,019,327.92/x
  3. Step 3: Cross multiply
    465,477,145.44x = 642,971,626.88 × 345,019,327.92
  4. Step 4: Simplify right side
    465,477,145.44x = 221,837,638,576,041,536
  5. Step 5: Solve for x
    x = 221,837,638,576,041,536/465,477,145.44
  6. Step 6: Final answer
    x = 476,581,161.39

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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.