Home / 579,980,222.96-800,390,285.16-315,681,327.59

Finding the Fourth Proportional to 579,980,222.96, 800,390,285.16 and 315,681,327.59

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Solution

The fourth proportional to 579,980,222.96, 800,390,285.16 and 315,681,327.59 is: 435,649,799.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,980,222.96 : 800,390,285.16 = 315,681,327.59 : x
  2. Step 2: Convert to fraction form
    579,980,222.96/800,390,285.16 = 315,681,327.59/x
  3. Step 3: Cross multiply
    579,980,222.96x = 800,390,285.16 × 315,681,327.59
  4. Step 4: Simplify right side
    579,980,222.96x = 252,668,267,809,447,456
  5. Step 5: Solve for x
    x = 252,668,267,809,447,456/579,980,222.96
  6. Step 6: Final answer
    x = 435,649,799.44

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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.