Finding the Fourth Proportional to 13,207,470.80, 19,811,206.20 and 11,648,577.20
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Solution
The fourth proportional to 13,207,470.80, 19,811,206.20 and 11,648,577.20 is: 17,472,865.80
Step by Step Solution
- Step 1: Write the proportion equation
13,207,470.80 : 19,811,206.20 = 11,648,577.20 : x - Step 2: Convert to fraction form
13,207,470.80/19,811,206.20 = 11,648,577.20/x - Step 3: Cross multiply
13,207,470.80x = 19,811,206.20 × 11,648,577.20 - Step 4: Simplify right side
13,207,470.80x = 230,772,364,845,818.62 - Step 5: Solve for x
x = 230,772,364,845,818.62/13,207,470.80 - Step 6: Final answer
x = 17,472,865.80
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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.