Finding the Fourth Proportional to 14,342,235.32, 19,791,708.85 and 7,815,725.68
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Solution
The fourth proportional to 14,342,235.32, 19,791,708.85 and 7,815,725.68 is: 10,785,387.61
Step by Step Solution
- Step 1: Write the proportion equation
14,342,235.32 : 19,791,708.85 = 7,815,725.68 : x - Step 2: Convert to fraction form
14,342,235.32/19,791,708.85 = 7,815,725.68/x - Step 3: Cross multiply
14,342,235.32x = 19,791,708.85 × 7,815,725.68 - Step 4: Simplify right side
14,342,235.32x = 154,686,567,110,028.28 - Step 5: Solve for x
x = 154,686,567,110,028.28/14,342,235.32 - Step 6: Final answer
x = 10,785,387.61
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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.