Finding the Fourth Proportional to 8,748,068.30, 13,122,102.45 and 8,429,203.70
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Solution
The fourth proportional to 8,748,068.30, 13,122,102.45 and 8,429,203.70 is: 12,643,805.55
Step by Step Solution
- Step 1: Write the proportion equation
8,748,068.30 : 13,122,102.45 = 8,429,203.70 : x - Step 2: Convert to fraction form
8,748,068.30/13,122,102.45 = 8,429,203.70/x - Step 3: Cross multiply
8,748,068.30x = 13,122,102.45 × 8,429,203.70 - Step 4: Simplify right side
8,748,068.30x = 110,608,874,523,319.05 - Step 5: Solve for x
x = 110,608,874,523,319.05/8,748,068.30 - Step 6: Final answer
x = 12,643,805.55
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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.