Finding the Fourth Proportional to 647,222,106.93, 971,524,032.99 and 278,938,808.31
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Solution
The fourth proportional to 647,222,106.93, 971,524,032.99 and 278,938,808.31 is: 418,705,963.69
Step by Step Solution
- Step 1: Write the proportion equation
647,222,106.93 : 971,524,032.99 = 278,938,808.31 : x - Step 2: Convert to fraction form
647,222,106.93/971,524,032.99 = 278,938,808.31/x - Step 3: Cross multiply
647,222,106.93x = 971,524,032.99 × 278,938,808.31 - Step 4: Simplify right side
647,222,106.93x = 270,995,756,006,755,744 - Step 5: Solve for x
x = 270,995,756,006,755,744/647,222,106.93 - Step 6: Final answer
x = 418,705,963.69
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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.