Finding the Fourth Proportional to 648,878,186.09, 971,703,027.10 and 453,876,539.96
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Solution
The fourth proportional to 648,878,186.09, 971,703,027.10 and 453,876,539.96 is: 679,685,674.85
Step by Step Solution
- Step 1: Write the proportion equation
648,878,186.09 : 971,703,027.10 = 453,876,539.96 : x - Step 2: Convert to fraction form
648,878,186.09/971,703,027.10 = 453,876,539.96/x - Step 3: Cross multiply
648,878,186.09x = 971,703,027.10 × 453,876,539.96 - Step 4: Simplify right side
648,878,186.09x = 441,033,207,809,260,992 - Step 5: Solve for x
x = 441,033,207,809,260,992/648,878,186.09 - Step 6: Final answer
x = 679,685,674.85
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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.