Finding the Fourth Proportional to 18,636,451.20, 27,961,404.48 and 6,507,702.72
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Solution
The fourth proportional to 18,636,451.20, 27,961,404.48 and 6,507,702.72 is: 9,763,903.33
Step by Step Solution
- Step 1: Write the proportion equation
18,636,451.20 : 27,961,404.48 = 6,507,702.72 : x - Step 2: Convert to fraction form
18,636,451.20/27,961,404.48 = 6,507,702.72/x - Step 3: Cross multiply
18,636,451.20x = 27,961,404.48 × 6,507,702.72 - Step 4: Simplify right side
18,636,451.20x = 181,964,507,989,516.19 - Step 5: Solve for x
x = 181,964,507,989,516.19/18,636,451.20 - Step 6: Final answer
x = 9,763,903.33
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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.