Finding the Fourth Proportional to 631,230,773.84, 871,125,370.48 and 352,772,289.44
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Solution
The fourth proportional to 631,230,773.84, 871,125,370.48 and 352,772,289.44 is: 486,840,794.32
Step by Step Solution
- Step 1: Write the proportion equation
631,230,773.84 : 871,125,370.48 = 352,772,289.44 : x - Step 2: Convert to fraction form
631,230,773.84/871,125,370.48 = 352,772,289.44/x - Step 3: Cross multiply
631,230,773.84x = 871,125,370.48 × 352,772,289.44 - Step 4: Simplify right side
631,230,773.84x = 307,308,891,333,497,792 - Step 5: Solve for x
x = 307,308,891,333,497,792/631,230,773.84 - Step 6: Final answer
x = 486,840,794.32
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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.