Finding the Fourth Proportional to 128,636,492.44, 192,449,638.78 and 99,268,453.74
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Solution
The fourth proportional to 128,636,492.44, 192,449,638.78 and 99,268,453.74 is: 148,512,896.32
Step by Step Solution
- Step 1: Write the proportion equation
128,636,492.44 : 192,449,638.78 = 99,268,453.74 : x - Step 2: Convert to fraction form
128,636,492.44/192,449,638.78 = 99,268,453.74/x - Step 3: Cross multiply
128,636,492.44x = 192,449,638.78 × 99,268,453.74 - Step 4: Simplify right side
128,636,492.44x = 19,104,178,064,512,140 - Step 5: Solve for x
x = 19,104,178,064,512,140/128,636,492.44 - Step 6: Final answer
x = 148,512,896.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.