Finding the Fourth Proportional to 1,036,424,442.70, 1,554,636,664.05 and 455,293,709.20
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Solution
The fourth proportional to 1,036,424,442.70, 1,554,636,664.05 and 455,293,709.20 is: 682,940,563.80
Step by Step Solution
- Step 1: Write the proportion equation
1,036,424,442.70 : 1,554,636,664.05 = 455,293,709.20 : x - Step 2: Convert to fraction form
1,036,424,442.70/1,554,636,664.05 = 455,293,709.20/x - Step 3: Cross multiply
1,036,424,442.70x = 1,554,636,664.05 × 455,293,709.20 - Step 4: Simplify right side
1,036,424,442.70x = 707,816,293,233,638,784 - Step 5: Solve for x
x = 707,816,293,233,638,784/1,036,424,442.70 - Step 6: Final answer
x = 682,940,563.80
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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.