Finding the Fourth Proportional to 13,384,253.70, 18,470,387.07 and 7,272,682.20
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Solution
The fourth proportional to 13,384,253.70, 18,470,387.07 and 7,272,682.20 is: 10,036,364.99
Step by Step Solution
- Step 1: Write the proportion equation
13,384,253.70 : 18,470,387.07 = 7,272,682.20 : x - Step 2: Convert to fraction form
13,384,253.70/18,470,387.07 = 7,272,682.20/x - Step 3: Cross multiply
13,384,253.70x = 18,470,387.07 × 7,272,682.20 - Step 4: Simplify right side
13,384,253.70x = 134,329,255,271,099.16 - Step 5: Solve for x
x = 134,329,255,271,099.16/13,384,253.70 - Step 6: Final answer
x = 10,036,364.99
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1.5x scale
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.