Home / 135,383,405.80-203,075,108.70-129,486,087.40

Finding the Fourth Proportional to 135,383,405.80, 203,075,108.70 and 129,486,087.40

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Solution

The fourth proportional to 135,383,405.80, 203,075,108.70 and 129,486,087.40 is: 194,229,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,383,405.80 : 203,075,108.70 = 129,486,087.40 : x
  2. Step 2: Convert to fraction form
    135,383,405.80/203,075,108.70 = 129,486,087.40/x
  3. Step 3: Cross multiply
    135,383,405.80x = 203,075,108.70 × 129,486,087.40
  4. Step 4: Simplify right side
    135,383,405.80x = 26,295,401,273,892,700
  5. Step 5: Solve for x
    x = 26,295,401,273,892,700/135,383,405.80
  6. Step 6: Final answer
    x = 194,229,131.10

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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.