Finding the Fourth Proportional to 232,543,263.72, 320,909,557.80 and 128,121,334.08
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Solution
The fourth proportional to 232,543,263.72, 320,909,557.80 and 128,121,334.08 is: 176,807,360.52
Step by Step Solution
- Step 1: Write the proportion equation
232,543,263.72 : 320,909,557.80 = 128,121,334.08 : x - Step 2: Convert to fraction form
232,543,263.72/320,909,557.80 = 128,121,334.08/x - Step 3: Cross multiply
232,543,263.72x = 320,909,557.80 × 128,121,334.08 - Step 4: Simplify right side
232,543,263.72x = 41,115,360,664,358,872 - Step 5: Solve for x
x = 41,115,360,664,358,872/232,543,263.72 - Step 6: Final answer
x = 176,807,360.52
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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.