Finding the Fourth Proportional to 11,577,688.88, 15,977,744.04 and 6,420,743.12
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Solution
The fourth proportional to 11,577,688.88, 15,977,744.04 and 6,420,743.12 is: 8,860,921.31
Step by Step Solution
- Step 1: Write the proportion equation
11,577,688.88 : 15,977,744.04 = 6,420,743.12 : x - Step 2: Convert to fraction form
11,577,688.88/15,977,744.04 = 6,420,743.12/x - Step 3: Cross multiply
11,577,688.88x = 15,977,744.04 × 6,420,743.12 - Step 4: Simplify right side
11,577,688.88x = 102,588,990,117,951 - Step 5: Solve for x
x = 102,588,990,117,951/11,577,688.88 - Step 6: Final answer
x = 8,860,921.31
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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.