Finding the Fourth Proportional to 130,569,691.20, 195,861,909.60 and 39,696,244.80
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Solution
The fourth proportional to 130,569,691.20, 195,861,909.60 and 39,696,244.80 is: 59,546,608.70
Step by Step Solution
- Step 1: Write the proportion equation
130,569,691.20 : 195,861,909.60 = 39,696,244.80 : x - Step 2: Convert to fraction form
130,569,691.20/195,861,909.60 = 39,696,244.80/x - Step 3: Cross multiply
130,569,691.20x = 195,861,909.60 × 39,696,244.80 - Step 4: Simplify right side
130,569,691.20x = 7,774,982,310,477,069 - Step 5: Solve for x
x = 7,774,982,310,477,069/130,569,691.20 - Step 6: Final answer
x = 59,546,608.70
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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.