Home / 143,245,720.35-214,921,784.40-99,503,430.84

Finding the Fourth Proportional to 143,245,720.35, 214,921,784.40 and 99,503,430.84

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Solution

The fourth proportional to 143,245,720.35, 214,921,784.40 and 99,503,430.84 is: 149,292,103.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,245,720.35 : 214,921,784.40 = 99,503,430.84 : x
  2. Step 2: Convert to fraction form
    143,245,720.35/214,921,784.40 = 99,503,430.84/x
  3. Step 3: Cross multiply
    143,245,720.35x = 214,921,784.40 × 99,503,430.84
  4. Step 4: Simplify right side
    143,245,720.35x = 21,385,454,910,054,792
  5. Step 5: Solve for x
    x = 21,385,454,910,054,792/143,245,720.35
  6. Step 6: Final answer
    x = 149,292,103.51

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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.