Finding the Fourth Proportional to 7,439,480.75, 10,266,478.18 and 4,176,301.79
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Solution
The fourth proportional to 7,439,480.75, 10,266,478.18 and 4,176,301.79 is: 5,763,293.52
Step by Step Solution
- Step 1: Write the proportion equation
7,439,480.75 : 10,266,478.18 = 4,176,301.79 : x - Step 2: Convert to fraction form
7,439,480.75/10,266,478.18 = 4,176,301.79/x - Step 3: Cross multiply
7,439,480.75x = 10,266,478.18 × 4,176,301.79 - Step 4: Simplify right side
7,439,480.75x = 42,875,911,200,129.94 - Step 5: Solve for x
x = 42,875,911,200,129.94/7,439,480.75 - Step 6: Final answer
x = 5,763,293.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.