Finding the Fourth Proportional to 1,455,448,561.80, 2,183,172,842.70 and 680,607,583.80
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Solution
The fourth proportional to 1,455,448,561.80, 2,183,172,842.70 and 680,607,583.80 is: 1,020,911,375.70
Step by Step Solution
- Step 1: Write the proportion equation
1,455,448,561.80 : 2,183,172,842.70 = 680,607,583.80 : x - Step 2: Convert to fraction form
1,455,448,561.80/2,183,172,842.70 = 680,607,583.80/x - Step 3: Cross multiply
1,455,448,561.80x = 2,183,172,842.70 × 680,607,583.80 - Step 4: Simplify right side
1,455,448,561.80x = 1,485,883,993,487,824,128 - Step 5: Solve for x
x = 1,485,883,993,487,824,128/1,455,448,561.80 - Step 6: Final answer
x = 1,020,911,375.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.