Finding the Fourth Proportional to 79,929,956.12, 110,306,013.82 and 48,984,149.08
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Solution
The fourth proportional to 79,929,956.12, 110,306,013.82 and 48,984,149.08 is: 67,599,764.69
Step by Step Solution
- Step 1: Write the proportion equation
79,929,956.12 : 110,306,013.82 = 48,984,149.08 : x - Step 2: Convert to fraction form
79,929,956.12/110,306,013.82 = 48,984,149.08/x - Step 3: Cross multiply
79,929,956.12x = 110,306,013.82 × 48,984,149.08 - Step 4: Simplify right side
79,929,956.12x = 5,403,246,225,379,420 - Step 5: Solve for x
x = 5,403,246,225,379,420/79,929,956.12 - Step 6: Final answer
x = 67,599,764.69
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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.