Finding the Fourth Proportional to 7,853,312.20, 11,779,968.30 and 5,461,827.70
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Solution
The fourth proportional to 7,853,312.20, 11,779,968.30 and 5,461,827.70 is: 8,192,741.55
Step by Step Solution
- Step 1: Write the proportion equation
7,853,312.20 : 11,779,968.30 = 5,461,827.70 : x - Step 2: Convert to fraction form
7,853,312.20/11,779,968.30 = 5,461,827.70/x - Step 3: Cross multiply
7,853,312.20x = 11,779,968.30 × 5,461,827.70 - Step 4: Simplify right side
7,853,312.20x = 64,340,157,166,061.91 - Step 5: Solve for x
x = 64,340,157,166,061.91/7,853,312.20 - Step 6: Final answer
x = 8,192,741.55
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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.