Finding the Fourth Proportional to 128,636,491.44, 192,449,637.28 and 99,268,452.75
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Solution
The fourth proportional to 128,636,491.44, 192,449,637.28 and 99,268,452.75 is: 148,512,894.83
Step by Step Solution
- Step 1: Write the proportion equation
128,636,491.44 : 192,449,637.28 = 99,268,452.75 : x - Step 2: Convert to fraction form
128,636,491.44/192,449,637.28 = 99,268,452.75/x - Step 3: Cross multiply
128,636,491.44x = 192,449,637.28 × 99,268,452.75 - Step 4: Simplify right side
128,636,491.44x = 19,104,177,725,084,320 - Step 5: Solve for x
x = 19,104,177,725,084,320/128,636,491.44 - Step 6: Final answer
x = 148,512,894.83
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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.