Finding the Fourth Proportional to 117,845,731.20, 162,632,177.34 and 65,634,790.08
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Solution
The fourth proportional to 117,845,731.20, 162,632,177.34 and 65,634,790.08 is: 90,578,833.12
Step by Step Solution
- Step 1: Write the proportion equation
117,845,731.20 : 162,632,177.34 = 65,634,790.08 : x - Step 2: Convert to fraction form
117,845,731.20/162,632,177.34 = 65,634,790.08/x - Step 3: Cross multiply
117,845,731.20x = 162,632,177.34 × 65,634,790.08 - Step 4: Simplify right side
117,845,731.20x = 10,674,328,819,964,232 - Step 5: Solve for x
x = 10,674,328,819,964,232/117,845,731.20 - Step 6: Final answer
x = 90,578,833.12
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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.