Home / 212,215,923.36-318,323,858.04-58,861,978.92

Finding the Fourth Proportional to 212,215,923.36, 318,323,858.04 and 58,861,978.92

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Solution

The fourth proportional to 212,215,923.36, 318,323,858.04 and 58,861,978.92 is: 88,292,960.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,215,923.36 : 318,323,858.04 = 58,861,978.92 : x
  2. Step 2: Convert to fraction form
    212,215,923.36/318,323,858.04 = 58,861,978.92/x
  3. Step 3: Cross multiply
    212,215,923.36x = 318,323,858.04 × 58,861,978.92
  4. Step 4: Simplify right side
    212,215,923.36x = 18,737,172,221,683,556
  5. Step 5: Solve for x
    x = 18,737,172,221,683,556/212,215,923.36
  6. Step 6: Final answer
    x = 88,292,960.89

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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.