Finding the Fourth Proportional to 26,316,107.80, 39,474,161.70 and 12,879,179.80
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Solution
The fourth proportional to 26,316,107.80, 39,474,161.70 and 12,879,179.80 is: 19,318,769.70
Step by Step Solution
- Step 1: Write the proportion equation
26,316,107.80 : 39,474,161.70 = 12,879,179.80 : x - Step 2: Convert to fraction form
26,316,107.80/39,474,161.70 = 12,879,179.80/x - Step 3: Cross multiply
26,316,107.80x = 39,474,161.70 × 12,879,179.80 - Step 4: Simplify right side
26,316,107.80x = 508,394,825,988,573.75 - Step 5: Solve for x
x = 508,394,825,988,573.75/26,316,107.80 - Step 6: Final answer
x = 19,318,769.70
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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.