Finding the Fourth Proportional to 12,769,235.40, 19,153,853.10 and 8,495,545.80
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Solution
The fourth proportional to 12,769,235.40, 19,153,853.10 and 8,495,545.80 is: 12,743,318.70
Step by Step Solution
- Step 1: Write the proportion equation
12,769,235.40 : 19,153,853.10 = 8,495,545.80 : x - Step 2: Convert to fraction form
12,769,235.40/19,153,853.10 = 8,495,545.80/x - Step 3: Cross multiply
12,769,235.40x = 19,153,853.10 × 8,495,545.80 - Step 4: Simplify right side
12,769,235.40x = 162,722,436,257,522 - Step 5: Solve for x
x = 162,722,436,257,522/12,769,235.40 - Step 6: Final answer
x = 12,743,318.70
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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.