Finding the Fourth Proportional to 138,252,730.08, 190,790,362.80 and 76,371,771.36
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Solution
The fourth proportional to 138,252,730.08, 190,790,362.80 and 76,371,771.36 is: 105,393,925.73
Step by Step Solution
- Step 1: Write the proportion equation
138,252,730.08 : 190,790,362.80 = 76,371,771.36 : x - Step 2: Convert to fraction form
138,252,730.08/190,790,362.80 = 76,371,771.36/x - Step 3: Cross multiply
138,252,730.08x = 190,790,362.80 × 76,371,771.36 - Step 4: Simplify right side
138,252,730.08x = 14,570,997,965,453,050 - Step 5: Solve for x
x = 14,570,997,965,453,050/138,252,730.08 - Step 6: Final answer
x = 105,393,925.73
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.