Finding the Fourth Proportional to 38,676,835.68, 53,374,060.56 and 21,274,504.92
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Solution
The fourth proportional to 38,676,835.68, 53,374,060.56 and 21,274,504.92 is: 29,358,831.82
Step by Step Solution
- Step 1: Write the proportion equation
38,676,835.68 : 53,374,060.56 = 21,274,504.92 : x - Step 2: Convert to fraction form
38,676,835.68/53,374,060.56 = 21,274,504.92/x - Step 3: Cross multiply
38,676,835.68x = 53,374,060.56 × 21,274,504.92 - Step 4: Simplify right side
38,676,835.68x = 1,135,506,713,984,098 - Step 5: Solve for x
x = 1,135,506,713,984,098/38,676,835.68 - Step 6: Final answer
x = 29,358,831.82
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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.