Home / 315,048,840.70-472,573,261.05-85,017,556.30

Finding the Fourth Proportional to 315,048,840.70, 472,573,261.05 and 85,017,556.30

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Solution

The fourth proportional to 315,048,840.70, 472,573,261.05 and 85,017,556.30 is: 127,526,334.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,048,840.70 : 472,573,261.05 = 85,017,556.30 : x
  2. Step 2: Convert to fraction form
    315,048,840.70/472,573,261.05 = 85,017,556.30/x
  3. Step 3: Cross multiply
    315,048,840.70x = 472,573,261.05 × 85,017,556.30
  4. Step 4: Simplify right side
    315,048,840.70x = 40,177,023,827,192,968
  5. Step 5: Solve for x
    x = 40,177,023,827,192,968/315,048,840.70
  6. Step 6: Final answer
    x = 127,526,334.45

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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.