Finding the Fourth Proportional to 649,035,374.91, 895,669,604.69 and 351,677,387.09
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Solution
The fourth proportional to 649,035,374.91, 895,669,604.69 and 351,677,387.09 is: 485,315,220.79
Step by Step Solution
- Step 1: Write the proportion equation
649,035,374.91 : 895,669,604.69 = 351,677,387.09 : x - Step 2: Convert to fraction form
649,035,374.91/895,669,604.69 = 351,677,387.09/x - Step 3: Cross multiply
649,035,374.91x = 895,669,604.69 × 351,677,387.09 - Step 4: Simplify right side
649,035,374.91x = 314,986,746,270,751,936 - Step 5: Solve for x
x = 314,986,746,270,751,936/649,035,374.91 - Step 6: Final answer
x = 485,315,220.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.