Finding the Fourth Proportional to 28,572,612.48, 39,430,522.44 and 16,814,479.68
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Solution
The fourth proportional to 28,572,612.48, 39,430,522.44 and 16,814,479.68 is: 23,204,168.64
Step by Step Solution
- Step 1: Write the proportion equation
28,572,612.48 : 39,430,522.44 = 16,814,479.68 : x - Step 2: Convert to fraction form
28,572,612.48/39,430,522.44 = 16,814,479.68/x - Step 3: Cross multiply
28,572,612.48x = 39,430,522.44 × 16,814,479.68 - Step 4: Simplify right side
28,572,612.48x = 663,003,718,339,164 - Step 5: Solve for x
x = 663,003,718,339,164/28,572,612.48 - Step 6: Final answer
x = 23,204,168.64
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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.