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Finding the Fourth Proportional to 569,089,749.38, 785,103,373.90 and 380,978,649.75

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Solution

The fourth proportional to 569,089,749.38, 785,103,373.90 and 380,978,649.75 is: 525,589,546.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,089,749.38 : 785,103,373.90 = 380,978,649.75 : x
  2. Step 2: Convert to fraction form
    569,089,749.38/785,103,373.90 = 380,978,649.75/x
  3. Step 3: Cross multiply
    569,089,749.38x = 785,103,373.90 × 380,978,649.75
  4. Step 4: Simplify right side
    569,089,749.38x = 299,107,623,297,256,064
  5. Step 5: Solve for x
    x = 299,107,623,297,256,064/569,089,749.38
  6. Step 6: Final answer
    x = 525,589,546.51

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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.