Finding the Fourth Proportional to 702,374,541.37, 969,038,246.54 and 400,743,163.97
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Solution
The fourth proportional to 702,374,541.37, 969,038,246.54 and 400,743,163.97 is: 552,889,420.18
Step by Step Solution
- Step 1: Write the proportion equation
702,374,541.37 : 969,038,246.54 = 400,743,163.97 : x - Step 2: Convert to fraction form
702,374,541.37/969,038,246.54 = 400,743,163.97/x - Step 3: Cross multiply
702,374,541.37x = 969,038,246.54 × 400,743,163.97 - Step 4: Simplify right side
702,374,541.37x = 388,335,452,926,171,072 - Step 5: Solve for x
x = 388,335,452,926,171,072/702,374,541.37 - Step 6: Final answer
x = 552,889,420.18
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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.