Finding the Fourth Proportional to 38,643,577.20, 57,972,364.20 and 19,425,970.80
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Solution
The fourth proportional to 38,643,577.20, 57,972,364.20 and 19,425,970.80 is: 29,142,474.27
Step by Step Solution
- Step 1: Write the proportion equation
38,643,577.20 : 57,972,364.20 = 19,425,970.80 : x - Step 2: Convert to fraction form
38,643,577.20/57,972,364.20 = 19,425,970.80/x - Step 3: Cross multiply
38,643,577.20x = 57,972,364.20 × 19,425,970.80 - Step 4: Simplify right side
38,643,577.20x = 1,126,169,454,156,165.50 - Step 5: Solve for x
x = 1,126,169,454,156,165.50/38,643,577.20 - Step 6: Final answer
x = 29,142,474.27
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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.