Finding the Fourth Proportional to 28,202,479.44, 38,915,937.72 and 17,185,213.68
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Solution
The fourth proportional to 28,202,479.44, 38,915,937.72 and 17,185,213.68 is: 23,713,471.96
Step by Step Solution
- Step 1: Write the proportion equation
28,202,479.44 : 38,915,937.72 = 17,185,213.68 : x - Step 2: Convert to fraction form
28,202,479.44/38,915,937.72 = 17,185,213.68/x - Step 3: Cross multiply
28,202,479.44x = 38,915,937.72 × 17,185,213.68 - Step 4: Simplify right side
28,202,479.44x = 668,778,705,275,772 - Step 5: Solve for x
x = 668,778,705,275,772/28,202,479.44 - Step 6: Final answer
x = 23,713,471.96
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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.