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Finding the Fourth Proportional to 618,751,772.44, 853,668,254.46 and 350,798,859.52

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Solution

The fourth proportional to 618,751,772.44, 853,668,254.46 and 350,798,859.52 is: 483,983,825.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,751,772.44 : 853,668,254.46 = 350,798,859.52 : x
  2. Step 2: Convert to fraction form
    618,751,772.44/853,668,254.46 = 350,798,859.52/x
  3. Step 3: Cross multiply
    618,751,772.44x = 853,668,254.46 × 350,798,859.52
  4. Step 4: Simplify right side
    618,751,772.44x = 299,465,850,072,997,120
  5. Step 5: Solve for x
    x = 299,465,850,072,997,120/618,751,772.44
  6. Step 6: Final answer
    x = 483,983,825.84

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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.