Finding the Fourth Proportional to 7,868,885.40, 10,859,615.16 and 4,384,450.08
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Solution
The fourth proportional to 7,868,885.40, 10,859,615.16 and 4,384,450.08 is: 6,050,849.41
Step by Step Solution
- Step 1: Write the proportion equation
7,868,885.40 : 10,859,615.16 = 4,384,450.08 : x - Step 2: Convert to fraction form
7,868,885.40/10,859,615.16 = 4,384,450.08/x - Step 3: Cross multiply
7,868,885.40x = 10,859,615.16 × 4,384,450.08 - Step 4: Simplify right side
7,868,885.40x = 47,613,440,557,031.21 - Step 5: Solve for x
x = 47,613,440,557,031.21/7,868,885.40 - Step 6: Final answer
x = 6,050,849.41
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1.5x scale
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.