Finding the Fourth Proportional to 7,117,854.75, 9,822,624.98 and 3,854,668.50
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Solution
The fourth proportional to 7,117,854.75, 9,822,624.98 and 3,854,668.50 is: 5,319,434.63
Step by Step Solution
- Step 1: Write the proportion equation
7,117,854.75 : 9,822,624.98 = 3,854,668.50 : x - Step 2: Convert to fraction form
7,117,854.75/9,822,624.98 = 3,854,668.50/x - Step 3: Cross multiply
7,117,854.75x = 9,822,624.98 × 3,854,668.50 - Step 4: Simplify right side
7,117,854.75x = 37,862,963,078,445.79 - Step 5: Solve for x
x = 37,862,963,078,445.79/7,117,854.75 - Step 6: Final answer
x = 5,319,434.63
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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.