Home / 155,118,018.48-214,062,813.30-85,504,561.90

Finding the Fourth Proportional to 155,118,018.48, 214,062,813.30 and 85,504,561.90

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Solution

The fourth proportional to 155,118,018.48, 214,062,813.30 and 85,504,561.90 is: 117,996,266.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,118,018.48 : 214,062,813.30 = 85,504,561.90 : x
  2. Step 2: Convert to fraction form
    155,118,018.48/214,062,813.30 = 85,504,561.90/x
  3. Step 3: Cross multiply
    155,118,018.48x = 214,062,813.30 × 85,504,561.90
  4. Step 4: Simplify right side
    155,118,018.48x = 18,303,347,070,297,996
  5. Step 5: Solve for x
    x = 18,303,347,070,297,996/155,118,018.48
  6. Step 6: Final answer
    x = 117,996,266.65

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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.