Home / 277,831,122.85-416,771,180.54-78,412,183.18

Finding the Fourth Proportional to 277,831,122.85, 416,771,180.54 and 78,412,183.18

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Solution

The fourth proportional to 277,831,122.85, 416,771,180.54 and 78,412,183.18 is: 117,625,188.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,831,122.85 : 416,771,180.54 = 78,412,183.18 : x
  2. Step 2: Convert to fraction form
    277,831,122.85/416,771,180.54 = 78,412,183.18/x
  3. Step 3: Cross multiply
    277,831,122.85x = 416,771,180.54 × 78,412,183.18
  4. Step 4: Simplify right side
    277,831,122.85x = 32,679,938,153,483,980
  5. Step 5: Solve for x
    x = 32,679,938,153,483,980/277,831,122.85
  6. Step 6: Final answer
    x = 117,625,188.35

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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.