Finding the Fourth Proportional to 3,852,478,789.79, 5,316,447,939.69 and 2,092,346,197.79
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Solution
The fourth proportional to 3,852,478,789.79, 5,316,447,939.69 and 2,092,346,197.79 is: 2,887,452,531.04
Step by Step Solution
- Step 1: Write the proportion equation
3,852,478,789.79 : 5,316,447,939.69 = 2,092,346,197.79 : x - Step 2: Convert to fraction form
3,852,478,789.79/5,316,447,939.69 = 2,092,346,197.79/x - Step 3: Cross multiply
3,852,478,789.79x = 5,316,447,939.69 × 2,092,346,197.79 - Step 4: Simplify right side
3,852,478,789.79x = 11,123,849,632,332,267,520 - Step 5: Solve for x
x = 11,123,849,632,332,267,520/3,852,478,789.79 - Step 6: Final answer
x = 2,887,452,531.04
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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.