Finding the Fourth Proportional to 648,260,270.88, 972,324,964.68 and 439,511,294.40
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Solution
The fourth proportional to 648,260,270.88, 972,324,964.68 and 439,511,294.40 is: 659,222,573.09
Step by Step Solution
- Step 1: Write the proportion equation
648,260,270.88 : 972,324,964.68 = 439,511,294.40 : x - Step 2: Convert to fraction form
648,260,270.88/972,324,964.68 = 439,511,294.40/x - Step 3: Cross multiply
648,260,270.88x = 972,324,964.68 × 439,511,294.40 - Step 4: Simplify right side
648,260,270.88x = 427,347,803,803,941,056 - Step 5: Solve for x
x = 427,347,803,803,941,056/648,260,270.88 - Step 6: Final answer
x = 659,222,573.09
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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.