Finding the Fourth Proportional to 3,426,149,790.76, 4,729,635,938.19 and 2,157,854,717.23
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Solution
The fourth proportional to 3,426,149,790.76, 4,729,635,938.19 and 2,157,854,717.23 is: 2,978,815,242.56
Step by Step Solution
- Step 1: Write the proportion equation
3,426,149,790.76 : 4,729,635,938.19 = 2,157,854,717.23 : x - Step 2: Convert to fraction form
3,426,149,790.76/4,729,635,938.19 = 2,157,854,717.23/x - Step 3: Cross multiply
3,426,149,790.76x = 4,729,635,938.19 × 2,157,854,717.23 - Step 4: Simplify right side
3,426,149,790.76x = 10,205,867,220,003,827,712 - Step 5: Solve for x
x = 10,205,867,220,003,827,712/3,426,149,790.76 - Step 6: Final answer
x = 2,978,815,242.56
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Double scale
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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.