Finding the Fourth Proportional to 548,048,434.21, 822,774,153.39 and 470,819,428.09
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Solution
The fourth proportional to 548,048,434.21, 822,774,153.39 and 470,819,428.09 is: 706,831,791.07
Step by Step Solution
- Step 1: Write the proportion equation
548,048,434.21 : 822,774,153.39 = 470,819,428.09 : x - Step 2: Convert to fraction form
548,048,434.21/822,774,153.39 = 470,819,428.09/x - Step 3: Cross multiply
548,048,434.21x = 822,774,153.39 × 470,819,428.09 - Step 4: Simplify right side
548,048,434.21x = 387,378,056,346,313,728 - Step 5: Solve for x
x = 387,378,056,346,313,728/548,048,434.21 - Step 6: Final answer
x = 706,831,791.07
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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.