Finding the Fourth Proportional to 1,686,684,715.48, 2,526,732,135.78 and 1,161,961,129.72
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Solution
The fourth proportional to 1,686,684,715.48, 2,526,732,135.78 and 1,161,961,129.72 is: 1,740,671,804.31
Step by Step Solution
- Step 1: Write the proportion equation
1,686,684,715.48 : 2,526,732,135.78 = 1,161,961,129.72 : x - Step 2: Convert to fraction form
1,686,684,715.48/2,526,732,135.78 = 1,161,961,129.72/x - Step 3: Cross multiply
1,686,684,715.48x = 2,526,732,135.78 × 1,161,961,129.72 - Step 4: Simplify right side
1,686,684,715.48x = 2,935,964,526,990,757,376 - Step 5: Solve for x
x = 2,935,964,526,990,757,376/1,686,684,715.48 - Step 6: Final answer
x = 1,740,671,804.31
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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.