Finding the Fourth Proportional to 79,175,087.80, 118,762,631.70 and 48,941,999.80
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Solution
The fourth proportional to 79,175,087.80, 118,762,631.70 and 48,941,999.80 is: 73,412,999.70
Step by Step Solution
- Step 1: Write the proportion equation
79,175,087.80 : 118,762,631.70 = 48,941,999.80 : x - Step 2: Convert to fraction form
79,175,087.80/118,762,631.70 = 48,941,999.80/x - Step 3: Cross multiply
79,175,087.80x = 118,762,631.70 × 48,941,999.80 - Step 4: Simplify right side
79,175,087.80x = 5,812,480,696,908,873 - Step 5: Solve for x
x = 5,812,480,696,908,873/79,175,087.80 - Step 6: Final answer
x = 73,412,999.70
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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.