Home / 1,323,080,238.36-1,984,675,128.23-390,403,067.80

Finding the Fourth Proportional to 1,323,080,238.36, 1,984,675,128.23 and 390,403,067.80

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Solution

The fourth proportional to 1,323,080,238.36, 1,984,675,128.23 and 390,403,067.80 is: 585,620,762.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,080,238.36 : 1,984,675,128.23 = 390,403,067.80 : x
  2. Step 2: Convert to fraction form
    1,323,080,238.36/1,984,675,128.23 = 390,403,067.80/x
  3. Step 3: Cross multiply
    1,323,080,238.36x = 1,984,675,128.23 × 390,403,067.80
  4. Step 4: Simplify right side
    1,323,080,238.36x = 774,823,258,647,350,400
  5. Step 5: Solve for x
    x = 774,823,258,647,350,400/1,323,080,238.36
  6. Step 6: Final answer
    x = 585,620,762.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.