Home / 210,135,850.80-314,778,623.40-145,512,625.20

Finding the Fourth Proportional to 210,135,850.80, 314,778,623.40 and 145,512,625.20

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Solution

The fourth proportional to 210,135,850.80, 314,778,623.40 and 145,512,625.20 is: 217,974,532.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,135,850.80 : 314,778,623.40 = 145,512,625.20 : x
  2. Step 2: Convert to fraction form
    210,135,850.80/314,778,623.40 = 145,512,625.20/x
  3. Step 3: Cross multiply
    210,135,850.80x = 314,778,623.40 × 145,512,625.20
  4. Step 4: Simplify right side
    210,135,850.80x = 45,804,263,847,776,144
  5. Step 5: Solve for x
    x = 45,804,263,847,776,144/210,135,850.80
  6. Step 6: Final answer
    x = 217,974,532.54

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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.