Finding the Fourth Proportional to 13,887,569.10, 20,831,353.65 and 3,791,210.70
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Solution
The fourth proportional to 13,887,569.10, 20,831,353.65 and 3,791,210.70 is: 5,686,816.05
Step by Step Solution
- Step 1: Write the proportion equation
13,887,569.10 : 20,831,353.65 = 3,791,210.70 : x - Step 2: Convert to fraction form
13,887,569.10/20,831,353.65 = 3,791,210.70/x - Step 3: Cross multiply
13,887,569.10x = 20,831,353.65 × 3,791,210.70 - Step 4: Simplify right side
13,887,569.10x = 78,976,050,853,364.05 - Step 5: Solve for x
x = 78,976,050,853,364.05/13,887,569.10 - Step 6: Final answer
x = 5,686,816.05
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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.