Finding the Fourth Proportional to 13,415,935.68, 18,514,547.52 and 7,615,257.12
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Solution
The fourth proportional to 13,415,935.68, 18,514,547.52 and 7,615,257.12 is: 10,509,370.59
Step by Step Solution
- Step 1: Write the proportion equation
13,415,935.68 : 18,514,547.52 = 7,615,257.12 : x - Step 2: Convert to fraction form
13,415,935.68/18,514,547.52 = 7,615,257.12/x - Step 3: Cross multiply
13,415,935.68x = 18,514,547.52 × 7,615,257.12 - Step 4: Simplify right side
13,415,935.68x = 140,993,039,825,258.34 - Step 5: Solve for x
x = 140,993,039,825,258.34/13,415,935.68 - Step 6: Final answer
x = 10,509,370.59
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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.