Finding the Fourth Proportional to 1,149,207,319.48, 1,724,053,078.62 and 372,792,355.96
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Solution
The fourth proportional to 1,149,207,319.48, 1,724,053,078.62 and 372,792,355.96 is: 559,267,068.77
Step by Step Solution
- Step 1: Write the proportion equation
1,149,207,319.48 : 1,724,053,078.62 = 372,792,355.96 : x - Step 2: Convert to fraction form
1,149,207,319.48/1,724,053,078.62 = 372,792,355.96/x - Step 3: Cross multiply
1,149,207,319.48x = 1,724,053,078.62 × 372,792,355.96 - Step 4: Simplify right side
1,149,207,319.48x = 642,713,808,978,840,832 - Step 5: Solve for x
x = 642,713,808,978,840,832/1,149,207,319.48 - Step 6: Final answer
x = 559,267,068.77
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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.