Finding the Fourth Proportional to 958,263,341.12, 1,322,407,394.64 and 518,230,193.12
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Solution
The fourth proportional to 958,263,341.12, 1,322,407,394.64 and 518,230,193.12 is: 715,159,821.00
Step by Step Solution
- Step 1: Write the proportion equation
958,263,341.12 : 1,322,407,394.64 = 518,230,193.12 : x - Step 2: Convert to fraction form
958,263,341.12/1,322,407,394.64 = 518,230,193.12/x - Step 3: Cross multiply
958,263,341.12x = 1,322,407,394.64 × 518,230,193.12 - Step 4: Simplify right side
958,263,341.12x = 685,311,439,507,603,328 - Step 5: Solve for x
x = 685,311,439,507,603,328/958,263,341.12 - Step 6: Final answer
x = 715,159,821.00
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Double scale
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1.5x scale
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.