Finding the Fourth Proportional to 8,424,636.90, 12,636,955.35 and 4,598,261.70
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Solution
The fourth proportional to 8,424,636.90, 12,636,955.35 and 4,598,261.70 is: 6,897,392.55
Step by Step Solution
- Step 1: Write the proportion equation
8,424,636.90 : 12,636,955.35 = 4,598,261.70 : x - Step 2: Convert to fraction form
8,424,636.90/12,636,955.35 = 4,598,261.70/x - Step 3: Cross multiply
8,424,636.90x = 12,636,955.35 × 4,598,261.70 - Step 4: Simplify right side
8,424,636.90x = 58,108,027,790,515.09 - Step 5: Solve for x
x = 58,108,027,790,515.09/8,424,636.90 - Step 6: Final answer
x = 6,897,392.55
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1.5x scale
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.