Finding the Fourth Proportional to 11,838,820.80, 16,337,615.76 and 6,406,312.80
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Solution
The fourth proportional to 11,838,820.80, 16,337,615.76 and 6,406,312.80 is: 8,840,734.96
Step by Step Solution
- Step 1: Write the proportion equation
11,838,820.80 : 16,337,615.76 = 6,406,312.80 : x - Step 2: Convert to fraction form
11,838,820.80/16,337,615.76 = 6,406,312.80/x - Step 3: Cross multiply
11,838,820.80x = 16,337,615.76 × 6,406,312.80 - Step 4: Simplify right side
11,838,820.80x = 104,663,876,964,769.72 - Step 5: Solve for x
x = 104,663,876,964,769.72/11,838,820.80 - Step 6: Final answer
x = 8,840,734.96
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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.