Finding the Fourth Proportional to 129,894,173.57, 179,252,531.42 and 70,353,988.49
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Solution
The fourth proportional to 129,894,173.57, 179,252,531.42 and 70,353,988.49 is: 97,087,730.61
Step by Step Solution
- Step 1: Write the proportion equation
129,894,173.57 : 179,252,531.42 = 70,353,988.49 : x - Step 2: Convert to fraction form
129,894,173.57/179,252,531.42 = 70,353,988.49/x - Step 3: Cross multiply
129,894,173.57x = 179,252,531.42 × 70,353,988.49 - Step 4: Simplify right side
129,894,173.57x = 12,611,130,531,078,010 - Step 5: Solve for x
x = 12,611,130,531,078,010/129,894,173.57 - Step 6: Final answer
x = 97,087,730.61
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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.