Home / 555,138,761.76-766,089,426.96-307,619,918.64

Finding the Fourth Proportional to 555,138,761.76, 766,089,426.96 and 307,619,918.64

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Solution

The fourth proportional to 555,138,761.76, 766,089,426.96 and 307,619,918.64 is: 424,514,343.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,138,761.76 : 766,089,426.96 = 307,619,918.64 : x
  2. Step 2: Convert to fraction form
    555,138,761.76/766,089,426.96 = 307,619,918.64/x
  3. Step 3: Cross multiply
    555,138,761.76x = 766,089,426.96 × 307,619,918.64
  4. Step 4: Simplify right side
    555,138,761.76x = 235,664,367,192,399,424
  5. Step 5: Solve for x
    x = 235,664,367,192,399,424/555,138,761.76
  6. Step 6: Final answer
    x = 424,514,343.85

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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.