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Finding the Fourth Proportional to 539,279,157.50, 744,719,199.81 and 509,899,315.22

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Solution

The fourth proportional to 539,279,157.50, 744,719,199.81 and 509,899,315.22 is: 704,147,016.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,279,157.50 : 744,719,199.81 = 509,899,315.22 : x
  2. Step 2: Convert to fraction form
    539,279,157.50/744,719,199.81 = 509,899,315.22/x
  3. Step 3: Cross multiply
    539,279,157.50x = 744,719,199.81 × 509,899,315.22
  4. Step 4: Simplify right side
    539,279,157.50x = 379,731,810,014,305,344
  5. Step 5: Solve for x
    x = 379,731,810,014,305,344/539,279,157.50
  6. Step 6: Final answer
    x = 704,147,016.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.