Finding the Fourth Proportional to 1,783,184,578.61, 2,460,824,355.60 and 979,486,389.68
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Solution
The fourth proportional to 1,783,184,578.61, 2,460,824,355.60 and 979,486,389.68 is: 1,351,707,497.14
Step by Step Solution
- Step 1: Write the proportion equation
1,783,184,578.61 : 2,460,824,355.60 = 979,486,389.68 : x - Step 2: Convert to fraction form
1,783,184,578.61/2,460,824,355.60 = 979,486,389.68/x - Step 3: Cross multiply
1,783,184,578.61x = 2,460,824,355.60 × 979,486,389.68 - Step 4: Simplify right side
1,783,184,578.61x = 2,410,343,963,690,952,192 - Step 5: Solve for x
x = 2,410,343,963,690,952,192/1,783,184,578.61 - Step 6: Final answer
x = 1,351,707,497.14
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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.