Home / 212,199,636.71-318,299,380.14-56,749,404.50

Finding the Fourth Proportional to 212,199,636.71, 318,299,380.14 and 56,749,404.50

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Solution

The fourth proportional to 212,199,636.71, 318,299,380.14 and 56,749,404.50 is: 85,124,086.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,199,636.71 : 318,299,380.14 = 56,749,404.50 : x
  2. Step 2: Convert to fraction form
    212,199,636.71/318,299,380.14 = 56,749,404.50/x
  3. Step 3: Cross multiply
    212,199,636.71x = 318,299,380.14 × 56,749,404.50
  4. Step 4: Simplify right side
    212,199,636.71x = 18,063,300,275,174,924
  5. Step 5: Solve for x
    x = 18,063,300,275,174,924/212,199,636.71
  6. Step 6: Final answer
    x = 85,124,086.71

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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.