Finding the Fourth Proportional to 128,857,312,992.46, 177,828,603,344.30 and 71,764,614,334.08
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Solution
The fourth proportional to 128,857,312,992.46, 177,828,603,344.30 and 71,764,614,334.08 is: 99,038,237,257.97
Step by Step Solution
- Step 1: Write the proportion equation
128,857,312,992.46 : 177,828,603,344.30 = 71,764,614,334.08 : x - Step 2: Convert to fraction form
128,857,312,992.46/177,828,603,344.30 = 71,764,614,334.08/x - Step 3: Cross multiply
128,857,312,992.46x = 177,828,603,344.30 × 71,764,614,334.08 - Step 4: Simplify right side
128,857,312,992.46x = 12,761,801,136,571,777,286,144 - Step 5: Solve for x
x = 12,761,801,136,571,777,286,144/128,857,312,992.46 - Step 6: Final answer
x = 99,038,237,257.97
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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.