Finding the Fourth Proportional to 427,771,187.87, 640,551,703.14 and 295,233,015.53
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Solution
The fourth proportional to 427,771,187.87, 640,551,703.14 and 295,233,015.53 is: 442,086,835.87
Step by Step Solution
- Step 1: Write the proportion equation
427,771,187.87 : 640,551,703.14 = 295,233,015.53 : x - Step 2: Convert to fraction form
427,771,187.87/640,551,703.14 = 295,233,015.53/x - Step 3: Cross multiply
427,771,187.87x = 640,551,703.14 × 295,233,015.53 - Step 4: Simplify right side
427,771,187.87x = 189,112,010,917,696,800 - Step 5: Solve for x
x = 189,112,010,917,696,800/427,771,187.87 - Step 6: Final answer
x = 442,086,835.87
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.