Finding the Fourth Proportional to 232,420,467.09, 320,736,368.93 and 128,008,253.82
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Solution
The fourth proportional to 232,420,467.09, 320,736,368.93 and 128,008,253.82 is: 176,649,255.71
Step by Step Solution
- Step 1: Write the proportion equation
232,420,467.09 : 320,736,368.93 = 128,008,253.82 : x - Step 2: Convert to fraction form
232,420,467.09/320,736,368.93 = 128,008,253.82/x - Step 3: Cross multiply
232,420,467.09x = 320,736,368.93 × 128,008,253.82 - Step 4: Simplify right side
232,420,467.09x = 41,056,902,522,656,560 - Step 5: Solve for x
x = 41,056,902,522,656,560/232,420,467.09 - Step 6: Final answer
x = 176,649,255.71
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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.