Finding the Fourth Proportional to 922,309,115.68, 1,382,352,154.61 and 423,631,489.63
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Solution
The fourth proportional to 922,309,115.68, 1,382,352,154.61 and 423,631,489.63 is: 634,936,695.84
Step by Step Solution
- Step 1: Write the proportion equation
922,309,115.68 : 1,382,352,154.61 = 423,631,489.63 : x - Step 2: Convert to fraction form
922,309,115.68/1,382,352,154.61 = 423,631,489.63/x - Step 3: Cross multiply
922,309,115.68x = 1,382,352,154.61 × 423,631,489.63 - Step 4: Simplify right side
922,309,115.68x = 585,607,902,450,674,304 - Step 5: Solve for x
x = 585,607,902,450,674,304/922,309,115.68 - Step 6: Final answer
x = 634,936,695.84
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1.5x scale
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.