Home / 981,089,352.88-1,353,670,595.99-557,669,685.43

Finding the Fourth Proportional to 981,089,352.88, 1,353,670,595.99 and 557,669,685.43

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Solution

The fourth proportional to 981,089,352.88, 1,353,670,595.99 and 557,669,685.43 is: 769,451,888.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,089,352.88 : 1,353,670,595.99 = 557,669,685.43 : x
  2. Step 2: Convert to fraction form
    981,089,352.88/1,353,670,595.99 = 557,669,685.43/x
  3. Step 3: Cross multiply
    981,089,352.88x = 1,353,670,595.99 × 557,669,685.43
  4. Step 4: Simplify right side
    981,089,352.88x = 754,901,055,439,593,984
  5. Step 5: Solve for x
    x = 754,901,055,439,593,984/981,089,352.88
  6. Step 6: Final answer
    x = 769,451,888.58

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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.