Finding the Fourth Proportional to 15,769,901.70, 23,645,521.35 and 8,211,629.70
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Solution
The fourth proportional to 15,769,901.70, 23,645,521.35 and 8,211,629.70 is: 12,312,585.65
Step by Step Solution
- Step 1: Write the proportion equation
15,769,901.70 : 23,645,521.35 = 8,211,629.70 : x - Step 2: Convert to fraction form
15,769,901.70/23,645,521.35 = 8,211,629.70/x - Step 3: Cross multiply
15,769,901.70x = 23,645,521.35 × 8,211,629.70 - Step 4: Simplify right side
15,769,901.70x = 194,168,265,389,644.12 - Step 5: Solve for x
x = 194,168,265,389,644.12/15,769,901.70 - Step 6: Final answer
x = 12,312,585.65
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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.