Finding the Fourth Proportional to 71,574,052.60, 98,773,500.80 and 39,787,206.68
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Solution
The fourth proportional to 71,574,052.60, 98,773,500.80 and 39,787,206.68 is: 54,907,072.44
Step by Step Solution
- Step 1: Write the proportion equation
71,574,052.60 : 98,773,500.80 = 39,787,206.68 : x - Step 2: Convert to fraction form
71,574,052.60/98,773,500.80 = 39,787,206.68/x - Step 3: Cross multiply
71,574,052.60x = 98,773,500.80 × 39,787,206.68 - Step 4: Simplify right side
71,574,052.60x = 3,929,921,690,836,745 - Step 5: Solve for x
x = 3,929,921,690,836,745/71,574,052.60 - Step 6: Final answer
x = 54,907,072.44
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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.