Home / 648,616,121.15-973,090,090.97-188,554,290.47

Finding the Fourth Proportional to 648,616,121.15, 973,090,090.97 and 188,554,290.47

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Solution

The fourth proportional to 648,616,121.15, 973,090,090.97 and 188,554,290.47 is: 282,879,665.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,616,121.15 : 973,090,090.97 = 188,554,290.47 : x
  2. Step 2: Convert to fraction form
    648,616,121.15/973,090,090.97 = 188,554,290.47/x
  3. Step 3: Cross multiply
    648,616,121.15x = 973,090,090.97 × 188,554,290.47
  4. Step 4: Simplify right side
    648,616,121.15x = 183,480,311,660,427,904
  5. Step 5: Solve for x
    x = 183,480,311,660,427,904/648,616,121.15
  6. Step 6: Final answer
    x = 282,879,665.92

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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.