Home / 210,150,311.90-314,952,046.07-85,507,684.02

Finding the Fourth Proportional to 210,150,311.90, 314,952,046.07 and 85,507,684.02

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Solution

The fourth proportional to 210,150,311.90, 314,952,046.07 and 85,507,684.02 is: 128,150,273.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,150,311.90 : 314,952,046.07 = 85,507,684.02 : x
  2. Step 2: Convert to fraction form
    210,150,311.90/314,952,046.07 = 85,507,684.02/x
  3. Step 3: Cross multiply
    210,150,311.90x = 314,952,046.07 × 85,507,684.02
  4. Step 4: Simplify right side
    210,150,311.90x = 26,930,820,036,378,504
  5. Step 5: Solve for x
    x = 26,930,820,036,378,504/210,150,311.90
  6. Step 6: Final answer
    x = 128,150,273.93

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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.