Home / 287,089,955.40-430,634,933.10-133,751,512.20

Finding the Fourth Proportional to 287,089,955.40, 430,634,933.10 and 133,751,512.20

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Solution

The fourth proportional to 287,089,955.40, 430,634,933.10 and 133,751,512.20 is: 200,627,268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,089,955.40 : 430,634,933.10 = 133,751,512.20 : x
  2. Step 2: Convert to fraction form
    287,089,955.40/430,634,933.10 = 133,751,512.20/x
  3. Step 3: Cross multiply
    287,089,955.40x = 430,634,933.10 × 133,751,512.20
  4. Step 4: Simplify right side
    287,089,955.40x = 57,598,073,508,270,840
  5. Step 5: Solve for x
    x = 57,598,073,508,270,840/287,089,955.40
  6. Step 6: Final answer
    x = 200,627,268.30

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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.