Home / 555,214,100.10-765,239,103.45-369,242,817.54

Finding the Fourth Proportional to 555,214,100.10, 765,239,103.45 and 369,242,817.54

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Solution

The fourth proportional to 555,214,100.10, 765,239,103.45 and 369,242,817.54 is: 508,919,068.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,214,100.10 : 765,239,103.45 = 369,242,817.54 : x
  2. Step 2: Convert to fraction form
    555,214,100.10/765,239,103.45 = 369,242,817.54/x
  3. Step 3: Cross multiply
    555,214,100.10x = 765,239,103.45 × 369,242,817.54
  4. Step 4: Simplify right side
    555,214,100.10x = 282,559,042,649,661,568
  5. Step 5: Solve for x
    x = 282,559,042,649,661,568/555,214,100.10
  6. Step 6: Final answer
    x = 508,919,068.52

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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.