Finding the Fourth Proportional to 10,050,440.40, 15,112,985.40 and 8,408,149.20
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Solution
The fourth proportional to 10,050,440.40, 15,112,985.40 and 8,408,149.20 is: 12,643,449.54
Step by Step Solution
- Step 1: Write the proportion equation
10,050,440.40 : 15,112,985.40 = 8,408,149.20 : x - Step 2: Convert to fraction form
10,050,440.40/15,112,985.40 = 8,408,149.20/x - Step 3: Cross multiply
10,050,440.40x = 15,112,985.40 × 8,408,149.20 - Step 4: Simplify right side
10,050,440.40x = 127,072,236,100,621.67 - Step 5: Solve for x
x = 127,072,236,100,621.67/10,050,440.40 - Step 6: Final answer
x = 12,643,449.54
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.