Finding the Fourth Proportional to 71,459,390.70, 98,611,113.15 and 38,864,368.62
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Solution
The fourth proportional to 71,459,390.70, 98,611,113.15 and 38,864,368.62 is: 53,631,280.84
Step by Step Solution
- Step 1: Write the proportion equation
71,459,390.70 : 98,611,113.15 = 38,864,368.62 : x - Step 2: Convert to fraction form
71,459,390.70/98,611,113.15 = 38,864,368.62/x - Step 3: Cross multiply
71,459,390.70x = 98,611,113.15 × 38,864,368.62 - Step 4: Simplify right side
71,459,390.70x = 3,832,458,651,490,129.50 - Step 5: Solve for x
x = 3,832,458,651,490,129.50/71,459,390.70 - Step 6: Final answer
x = 53,631,280.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.