Finding the Fourth Proportional to 1,411,848,560.48, 2,115,318,578.85 and 990,776,895.19
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Solution
The fourth proportional to 1,411,848,560.48, 2,115,318,578.85 and 990,776,895.19 is: 1,484,443,043.37
Step by Step Solution
- Step 1: Write the proportion equation
1,411,848,560.48 : 2,115,318,578.85 = 990,776,895.19 : x - Step 2: Convert to fraction form
1,411,848,560.48/2,115,318,578.85 = 990,776,895.19/x - Step 3: Cross multiply
1,411,848,560.48x = 2,115,318,578.85 × 990,776,895.19 - Step 4: Simplify right side
1,411,848,560.48x = 2,095,808,773,885,437,696 - Step 5: Solve for x
x = 2,095,808,773,885,437,696/1,411,848,560.48 - Step 6: Final answer
x = 1,484,443,043.37
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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.