Home / 516,489,638.00-712,749,898.89-281,535,143.22

Finding the Fourth Proportional to 516,489,638.00, 712,749,898.89 and 281,535,143.22

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Solution

The fourth proportional to 516,489,638.00, 712,749,898.89 and 281,535,143.22 is: 388,515,335.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,489,638.00 : 712,749,898.89 = 281,535,143.22 : x
  2. Step 2: Convert to fraction form
    516,489,638.00/712,749,898.89 = 281,535,143.22/x
  3. Step 3: Cross multiply
    516,489,638.00x = 712,749,898.89 × 281,535,143.22
  4. Step 4: Simplify right side
    516,489,638.00x = 200,664,144,864,036,672
  5. Step 5: Solve for x
    x = 200,664,144,864,036,672/516,489,638.00
  6. Step 6: Final answer
    x = 388,515,335.26

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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.