Finding the Fourth Proportional to 10,997,353.40, 15,175,116.05 and 6,102,781.79
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Solution
The fourth proportional to 10,997,353.40, 15,175,116.05 and 6,102,781.79 is: 8,421,155.39
Step by Step Solution
- Step 1: Write the proportion equation
10,997,353.40 : 15,175,116.05 = 6,102,781.79 : x - Step 2: Convert to fraction form
10,997,353.40/15,175,116.05 = 6,102,781.79/x - Step 3: Cross multiply
10,997,353.40x = 15,175,116.05 × 6,102,781.79 - Step 4: Simplify right side
10,997,353.40x = 92,610,421,784,687.23 - Step 5: Solve for x
x = 92,610,421,784,687.23/10,997,353.40 - Step 6: Final answer
x = 8,421,155.39
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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.