Finding the Fourth Proportional to 708,637,487.20, 1,062,956,230.80 and 326,431,535.20
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Solution
The fourth proportional to 708,637,487.20, 1,062,956,230.80 and 326,431,535.20 is: 489,647,302.80
Step by Step Solution
- Step 1: Write the proportion equation
708,637,487.20 : 1,062,956,230.80 = 326,431,535.20 : x - Step 2: Convert to fraction form
708,637,487.20/1,062,956,230.80 = 326,431,535.20/x - Step 3: Cross multiply
708,637,487.20x = 1,062,956,230.80 × 326,431,535.20 - Step 4: Simplify right side
708,637,487.20x = 346,982,434,270,449,472 - Step 5: Solve for x
x = 346,982,434,270,449,472/708,637,487.20 - Step 6: Final answer
x = 489,647,302.80
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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.