Home / 143,987,643.21-215,991,042.04-50,603,320.49

Finding the Fourth Proportional to 143,987,643.21, 215,991,042.04 and 50,603,320.49

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Solution

The fourth proportional to 143,987,643.21, 215,991,042.04 and 50,603,320.49 is: 75,908,346.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,987,643.21 : 215,991,042.04 = 50,603,320.49 : x
  2. Step 2: Convert to fraction form
    143,987,643.21/215,991,042.04 = 50,603,320.49/x
  3. Step 3: Cross multiply
    143,987,643.21x = 215,991,042.04 × 50,603,320.49
  4. Step 4: Simplify right side
    143,987,643.21x = 10,929,863,922,302,482
  5. Step 5: Solve for x
    x = 10,929,863,922,302,482/143,987,643.21
  6. Step 6: Final answer
    x = 75,908,346.57

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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.