Home / 201,089,071.30-301,782,906.15-80,007,420.10

Finding the Fourth Proportional to 201,089,071.30, 301,782,906.15 and 80,007,420.10

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Solution

The fourth proportional to 201,089,071.30, 301,782,906.15 and 80,007,420.10 is: 120,070,531.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,089,071.30 : 301,782,906.15 = 80,007,420.10 : x
  2. Step 2: Convert to fraction form
    201,089,071.30/301,782,906.15 = 80,007,420.10/x
  3. Step 3: Cross multiply
    201,089,071.30x = 301,782,906.15 × 80,007,420.10
  4. Step 4: Simplify right side
    201,089,071.30x = 24,144,871,751,341,920
  5. Step 5: Solve for x
    x = 24,144,871,751,341,920/201,089,071.30
  6. Step 6: Final answer
    x = 120,070,531.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.