Finding the Fourth Proportional to 13,637,286.65, 18,819,854.56 and 7,442,730.68
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Solution
The fourth proportional to 13,637,286.65, 18,819,854.56 and 7,442,730.68 is: 10,271,186.08
Step by Step Solution
- Step 1: Write the proportion equation
13,637,286.65 : 18,819,854.56 = 7,442,730.68 : x - Step 2: Convert to fraction form
13,637,286.65/18,819,854.56 = 7,442,730.68/x - Step 3: Cross multiply
13,637,286.65x = 18,819,854.56 × 7,442,730.68 - Step 4: Simplify right side
13,637,286.65x = 140,071,108,814,143.81 - Step 5: Solve for x
x = 140,071,108,814,143.81/13,637,286.65 - Step 6: Final answer
x = 10,271,186.08
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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.