Finding the Fourth Proportional to 121,130,795.40, 181,696,193.10 and 48,358,807.80
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Solution
The fourth proportional to 121,130,795.40, 181,696,193.10 and 48,358,807.80 is: 72,538,211.70
Step by Step Solution
- Step 1: Write the proportion equation
121,130,795.40 : 181,696,193.10 = 48,358,807.80 : x - Step 2: Convert to fraction form
121,130,795.40/181,696,193.10 = 48,358,807.80/x - Step 3: Cross multiply
121,130,795.40x = 181,696,193.10 × 48,358,807.80 - Step 4: Simplify right side
121,130,795.40x = 8,786,611,280,114,585 - Step 5: Solve for x
x = 8,786,611,280,114,585/121,130,795.40 - Step 6: Final answer
x = 72,538,211.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.