Finding the Fourth Proportional to 15,278,308.80, 22,917,130.26 and 7,186,799.40
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Solution
The fourth proportional to 15,278,308.80, 22,917,130.26 and 7,186,799.40 is: 10,780,042.49
Step by Step Solution
- Step 1: Write the proportion equation
15,278,308.80 : 22,917,130.26 = 7,186,799.40 : x - Step 2: Convert to fraction form
15,278,308.80/22,917,130.26 = 7,186,799.40/x - Step 3: Cross multiply
15,278,308.80x = 22,917,130.26 × 7,186,799.40 - Step 4: Simplify right side
15,278,308.80x = 164,700,818,002,289.88 - Step 5: Solve for x
x = 164,700,818,002,289.88/15,278,308.80 - Step 6: Final answer
x = 10,780,042.49
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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.