Finding the Fourth Proportional to 1,889,570,459.80, 2,834,355,689.70 and 1,192,213,579.60
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Solution
The fourth proportional to 1,889,570,459.80, 2,834,355,689.70 and 1,192,213,579.60 is: 1,788,320,369.40
Step by Step Solution
- Step 1: Write the proportion equation
1,889,570,459.80 : 2,834,355,689.70 = 1,192,213,579.60 : x - Step 2: Convert to fraction form
1,889,570,459.80/2,834,355,689.70 = 1,192,213,579.60/x - Step 3: Cross multiply
1,889,570,459.80x = 2,834,355,689.70 × 1,192,213,579.60 - Step 4: Simplify right side
1,889,570,459.80x = 3,379,157,342,676,863,488 - Step 5: Solve for x
x = 3,379,157,342,676,863,488/1,889,570,459.80 - Step 6: Final answer
x = 1,788,320,369.40
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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.