Finding the Fourth Proportional to 3,617,221.62, 4,991,746.12 and 1,985,656.74
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Solution
The fourth proportional to 3,617,221.62, 4,991,746.12 and 1,985,656.74 is: 2,740,195.48
Step by Step Solution
- Step 1: Write the proportion equation
3,617,221.62 : 4,991,746.12 = 1,985,656.74 : x - Step 2: Convert to fraction form
3,617,221.62/4,991,746.12 = 1,985,656.74/x - Step 3: Cross multiply
3,617,221.62x = 4,991,746.12 × 1,985,656.74 - Step 4: Simplify right side
3,617,221.62x = 9,911,894,327,546.85 - Step 5: Solve for x
x = 9,911,894,327,546.85/3,617,221.62 - Step 6: Final answer
x = 2,740,195.48
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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.