Finding the Fourth Proportional to 8,939,985.12, 13,410,420.48 and 2,551,178.88
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Solution
The fourth proportional to 8,939,985.12, 13,410,420.48 and 2,551,178.88 is: 3,826,894.68
Step by Step Solution
- Step 1: Write the proportion equation
8,939,985.12 : 13,410,420.48 = 2,551,178.88 : x - Step 2: Convert to fraction form
8,939,985.12/13,410,420.48 = 2,551,178.88/x - Step 3: Cross multiply
8,939,985.12x = 13,410,420.48 × 2,551,178.88 - Step 4: Simplify right side
8,939,985.12x = 34,212,381,500,495.46 - Step 5: Solve for x
x = 34,212,381,500,495.46/8,939,985.12 - Step 6: Final answer
x = 3,826,894.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.