Finding the Fourth Proportional to 1,022,195,517.96, 1,532,679,167.16 and 399,669,088.08
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Solution
The fourth proportional to 1,022,195,517.96, 1,532,679,167.16 and 399,669,088.08 is: 599,263,520.82
Step by Step Solution
- Step 1: Write the proportion equation
1,022,195,517.96 : 1,532,679,167.16 = 399,669,088.08 : x - Step 2: Convert to fraction form
1,022,195,517.96/1,532,679,167.16 = 399,669,088.08/x - Step 3: Cross multiply
1,022,195,517.96x = 1,532,679,167.16 × 399,669,088.08 - Step 4: Simplify right side
1,022,195,517.96x = 612,564,485,058,051,072 - Step 5: Solve for x
x = 612,564,485,058,051,072/1,022,195,517.96 - Step 6: Final answer
x = 599,263,520.82
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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.