Home / 516,489,670.48-712,749,943.74-281,535,175.72

Finding the Fourth Proportional to 516,489,670.48, 712,749,943.74 and 281,535,175.72

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Solution

The fourth proportional to 516,489,670.48, 712,749,943.74 and 281,535,175.72 is: 388,515,380.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,489,670.48 : 712,749,943.74 = 281,535,175.72 : x
  2. Step 2: Convert to fraction form
    516,489,670.48/712,749,943.74 = 281,535,175.72/x
  3. Step 3: Cross multiply
    516,489,670.48x = 712,749,943.74 × 281,535,175.72
  4. Step 4: Simplify right side
    516,489,670.48x = 200,664,180,655,261,024
  5. Step 5: Solve for x
    x = 200,664,180,655,261,024/516,489,670.48
  6. Step 6: Final answer
    x = 388,515,380.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.