Finding the Fourth Proportional to 5,218,935,789.44, 7,202,132,561.98 and 2,872,092,333.44
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Solution
The fourth proportional to 5,218,935,789.44, 7,202,132,561.98 and 2,872,092,333.44 is: 3,963,488,065.43
Step by Step Solution
- Step 1: Write the proportion equation
5,218,935,789.44 : 7,202,132,561.98 = 2,872,092,333.44 : x - Step 2: Convert to fraction form
5,218,935,789.44/7,202,132,561.98 = 2,872,092,333.44/x - Step 3: Cross multiply
5,218,935,789.44x = 7,202,132,561.98 × 2,872,092,333.44 - Step 4: Simplify right side
5,218,935,789.44x = 20,685,189,715,681,341,440 - Step 5: Solve for x
x = 20,685,189,715,681,341,440/5,218,935,789.44 - Step 6: Final answer
x = 3,963,488,065.43
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1.5x scale
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.