Finding the Fourth Proportional to 12,211,619.76, 18,317,927.79 and 3,113,953.29
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Solution
The fourth proportional to 12,211,619.76, 18,317,927.79 and 3,113,953.29 is: 4,671,056.96
Step by Step Solution
- Step 1: Write the proportion equation
12,211,619.76 : 18,317,927.79 = 3,113,953.29 : x - Step 2: Convert to fraction form
12,211,619.76/18,317,927.79 = 3,113,953.29/x - Step 3: Cross multiply
12,211,619.76x = 18,317,927.79 × 3,113,953.29 - Step 4: Simplify right side
12,211,619.76x = 57,041,171,507,652.93 - Step 5: Solve for x
x = 57,041,171,507,652.93/12,211,619.76 - Step 6: Final answer
x = 4,671,056.96
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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.