Finding the Fourth Proportional to 220,183,221.30, 330,274,831.95 and 90,724,193.70
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Solution
The fourth proportional to 220,183,221.30, 330,274,831.95 and 90,724,193.70 is: 136,086,290.55
Step by Step Solution
- Step 1: Write the proportion equation
220,183,221.30 : 330,274,831.95 = 90,724,193.70 : x - Step 2: Convert to fraction form
220,183,221.30/330,274,831.95 = 90,724,193.70/x - Step 3: Cross multiply
220,183,221.30x = 330,274,831.95 × 90,724,193.70 - Step 4: Simplify right side
220,183,221.30x = 29,963,917,828,066,748 - Step 5: Solve for x
x = 29,963,917,828,066,748/220,183,221.30 - Step 6: Final answer
x = 136,086,290.55
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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.