Finding the Fourth Proportional to 86,407,345.81, 129,611,149.93 and 35,289,364.62
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Solution
The fourth proportional to 86,407,345.81, 129,611,149.93 and 35,289,364.62 is: 52,934,100.52
Step by Step Solution
- Step 1: Write the proportion equation
86,407,345.81 : 129,611,149.93 = 35,289,364.62 : x - Step 2: Convert to fraction form
86,407,345.81/129,611,149.93 = 35,289,364.62/x - Step 3: Cross multiply
86,407,345.81x = 129,611,149.93 × 35,289,364.62 - Step 4: Simplify right side
86,407,345.81x = 4,573,895,128,399,056 - Step 5: Solve for x
x = 4,573,895,128,399,056/86,407,345.81 - Step 6: Final answer
x = 52,934,100.52
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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.