Home / 861,551,399.35-1,188,928,845.54-480,089,512.14

Finding the Fourth Proportional to 861,551,399.35, 1,188,928,845.54 and 480,089,512.14

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Solution

The fourth proportional to 861,551,399.35, 1,188,928,845.54 and 480,089,512.14 is: 662,516,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,551,399.35 : 1,188,928,845.54 = 480,089,512.14 : x
  2. Step 2: Convert to fraction form
    861,551,399.35/1,188,928,845.54 = 480,089,512.14/x
  3. Step 3: Cross multiply
    861,551,399.35x = 1,188,928,845.54 × 480,089,512.14
  4. Step 4: Simplify right side
    861,551,399.35x = 570,792,269,424,472,000
  5. Step 5: Solve for x
    x = 570,792,269,424,472,000/861,551,399.35
  6. Step 6: Final answer
    x = 662,516,792.21

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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.