Finding the Fourth Proportional to 409,808,367.25, 565,535,546.93 and 221,636,659.84
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Solution
The fourth proportional to 409,808,367.25, 565,535,546.93 and 221,636,659.84 is: 305,858,590.65
Step by Step Solution
- Step 1: Write the proportion equation
409,808,367.25 : 565,535,546.93 = 221,636,659.84 : x - Step 2: Convert to fraction form
409,808,367.25/565,535,546.93 = 221,636,659.84/x - Step 3: Cross multiply
409,808,367.25x = 565,535,546.93 × 221,636,659.84 - Step 4: Simplify right side
409,808,367.25x = 125,343,409,642,352,752 - Step 5: Solve for x
x = 125,343,409,642,352,752/409,808,367.25 - Step 6: Final answer
x = 305,858,590.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.