Finding the Fourth Proportional to 122,628,678.42, 183,791,551.46 and 105,234,614.49
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Solution
The fourth proportional to 122,628,678.42, 183,791,551.46 and 105,234,614.49 is: 157,721,940.03
Step by Step Solution
- Step 1: Write the proportion equation
122,628,678.42 : 183,791,551.46 = 105,234,614.49 : x - Step 2: Convert to fraction form
122,628,678.42/183,791,551.46 = 105,234,614.49/x - Step 3: Cross multiply
122,628,678.42x = 183,791,551.46 × 105,234,614.49 - Step 4: Simplify right side
122,628,678.42x = 19,341,233,063,885,924 - Step 5: Solve for x
x = 19,341,233,063,885,924/122,628,678.42 - Step 6: Final answer
x = 157,721,940.03
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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.