Finding the Fourth Proportional to 889,386,497.67, 1,227,353,342.40 and 492,969,044.68
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Solution
The fourth proportional to 889,386,497.67, 1,227,353,342.40 and 492,969,044.68 is: 680,297,268.14
Step by Step Solution
- Step 1: Write the proportion equation
889,386,497.67 : 1,227,353,342.40 = 492,969,044.68 : x - Step 2: Convert to fraction form
889,386,497.67/1,227,353,342.40 = 492,969,044.68/x - Step 3: Cross multiply
889,386,497.67x = 1,227,353,342.40 × 492,969,044.68 - Step 4: Simplify right side
889,386,497.67x = 605,047,204,687,732,992 - Step 5: Solve for x
x = 605,047,204,687,732,992/889,386,497.67 - Step 6: Final answer
x = 680,297,268.14
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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.