Home / 212,883,755.10-319,325,632.65-191,342,679.90

Finding the Fourth Proportional to 212,883,755.10, 319,325,632.65 and 191,342,679.90

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Solution

The fourth proportional to 212,883,755.10, 319,325,632.65 and 191,342,679.90 is: 287,014,019.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,883,755.10 : 319,325,632.65 = 191,342,679.90 : x
  2. Step 2: Convert to fraction form
    212,883,755.10/319,325,632.65 = 191,342,679.90/x
  3. Step 3: Cross multiply
    212,883,755.10x = 319,325,632.65 × 191,342,679.90
  4. Step 4: Simplify right side
    212,883,755.10x = 61,100,622,312,013,936
  5. Step 5: Solve for x
    x = 61,100,622,312,013,936/212,883,755.10
  6. Step 6: Final answer
    x = 287,014,019.85

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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.