Finding the Fourth Proportional to 631,228,648.68, 871,122,439.62 and 352,770,169.68
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Solution
The fourth proportional to 631,228,648.68, 871,122,439.62 and 352,770,169.68 is: 486,837,870.05
Step by Step Solution
- Step 1: Write the proportion equation
631,228,648.68 : 871,122,439.62 = 352,770,169.68 : x - Step 2: Convert to fraction form
631,228,648.68/871,122,439.62 = 352,770,169.68/x - Step 3: Cross multiply
631,228,648.68x = 871,122,439.62 × 352,770,169.68 - Step 4: Simplify right side
631,228,648.68x = 307,306,010,836,802,944 - Step 5: Solve for x
x = 307,306,010,836,802,944/631,228,648.68 - Step 6: Final answer
x = 486,837,870.05
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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.