Finding the Fourth Proportional to 305,035,303.79, 420,994,733.24 and 186,026,938.92
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Solution
The fourth proportional to 305,035,303.79, 420,994,733.24 and 186,026,938.92 is: 256,745,237.53
Step by Step Solution
- Step 1: Write the proportion equation
305,035,303.79 : 420,994,733.24 = 186,026,938.92 : x - Step 2: Convert to fraction form
305,035,303.79/420,994,733.24 = 186,026,938.92/x - Step 3: Cross multiply
305,035,303.79x = 420,994,733.24 × 186,026,938.92 - Step 4: Simplify right side
305,035,303.79x = 78,316,361,526,544,240 - Step 5: Solve for x
x = 78,316,361,526,544,240/305,035,303.79 - Step 6: Final answer
x = 256,745,237.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.