Finding the Fourth Proportional to 128,485,799.91, 192,736,175.76 and 36,361,831.23
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Solution
The fourth proportional to 128,485,799.91, 192,736,175.76 and 36,361,831.23 is: 54,544,862.54
Step by Step Solution
- Step 1: Write the proportion equation
128,485,799.91 : 192,736,175.76 = 36,361,831.23 : x - Step 2: Convert to fraction form
128,485,799.91/192,736,175.76 = 36,361,831.23/x - Step 3: Cross multiply
128,485,799.91x = 192,736,175.76 × 36,361,831.23 - Step 4: Simplify right side
128,485,799.91x = 7,008,240,294,900,736 - Step 5: Solve for x
x = 7,008,240,294,900,736/128,485,799.91 - Step 6: Final answer
x = 54,544,862.54
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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.