Finding the Fourth Proportional to 8,317,116,974.09, 12,475,566,489.20 and 2,021,527,908.43
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Solution
The fourth proportional to 8,317,116,974.09, 12,475,566,489.20 and 2,021,527,908.43 is: 3,032,265,376.32
Step by Step Solution
- Step 1: Write the proportion equation
8,317,116,974.09 : 12,475,566,489.20 = 2,021,527,908.43 : x - Step 2: Convert to fraction form
8,317,116,974.09/12,475,566,489.20 = 2,021,527,908.43/x - Step 3: Cross multiply
8,317,116,974.09x = 12,475,566,489.20 × 2,021,527,908.43 - Step 4: Simplify right side
8,317,116,974.09x = 25,219,705,831,350,575,104 - Step 5: Solve for x
x = 25,219,705,831,350,575,104/8,317,116,974.09 - Step 6: Final answer
x = 3,032,265,376.32
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1.5x scale
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.