Finding the Fourth Proportional to 15,228,883.04, 21,012,950.76 and 8,704,581.08
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Solution
The fourth proportional to 15,228,883.04, 21,012,950.76 and 8,704,581.08 is: 12,010,659.82
Step by Step Solution
- Step 1: Write the proportion equation
15,228,883.04 : 21,012,950.76 = 8,704,581.08 : x - Step 2: Convert to fraction form
15,228,883.04/21,012,950.76 = 8,704,581.08/x - Step 3: Cross multiply
15,228,883.04x = 21,012,950.76 × 8,704,581.08 - Step 4: Simplify right side
15,228,883.04x = 182,908,933,620,467.62 - Step 5: Solve for x
x = 182,908,933,620,467.62/15,228,883.04 - Step 6: Final answer
x = 12,010,659.82
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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.