Home / 212,603,999.40-318,905,999.10-51,045,935.40

Finding the Fourth Proportional to 212,603,999.40, 318,905,999.10 and 51,045,935.40

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Solution

The fourth proportional to 212,603,999.40, 318,905,999.10 and 51,045,935.40 is: 76,568,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,603,999.40 : 318,905,999.10 = 51,045,935.40 : x
  2. Step 2: Convert to fraction form
    212,603,999.40/318,905,999.10 = 51,045,935.40/x
  3. Step 3: Cross multiply
    212,603,999.40x = 318,905,999.10 × 51,045,935.40
  4. Step 4: Simplify right side
    212,603,999.40x = 16,278,855,028,731,058
  5. Step 5: Solve for x
    x = 16,278,855,028,731,058/212,603,999.40
  6. Step 6: Final answer
    x = 76,568,903.10

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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.