Finding the Fourth Proportional to 18,330,415.20, 27,495,618.66 and 4,683,587.10
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Solution
The fourth proportional to 18,330,415.20, 27,495,618.66 and 4,683,587.10 is: 7,025,379.59
Step by Step Solution
- Step 1: Write the proportion equation
18,330,415.20 : 27,495,618.66 = 4,683,587.10 : x - Step 2: Convert to fraction form
18,330,415.20/27,495,618.66 = 4,683,587.10/x - Step 3: Cross multiply
18,330,415.20x = 27,495,618.66 × 4,683,587.10 - Step 4: Simplify right side
18,330,415.20x = 128,778,124,862,495.28 - Step 5: Solve for x
x = 128,778,124,862,495.28/18,330,415.20 - Step 6: Final answer
x = 7,025,379.59
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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.