Finding the Fourth Proportional to 7,407,661.91, 11,167,014.76 and 6,913,864.62
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Solution
The fourth proportional to 7,407,661.91, 11,167,014.76 and 6,913,864.62 is: 10,422,617.72
Step by Step Solution
- Step 1: Write the proportion equation
7,407,661.91 : 11,167,014.76 = 6,913,864.62 : x - Step 2: Convert to fraction form
7,407,661.91/11,167,014.76 = 6,913,864.62/x - Step 3: Cross multiply
7,407,661.91x = 11,167,014.76 × 6,913,864.62 - Step 4: Simplify right side
7,407,661.91x = 77,207,228,242,897.14 - Step 5: Solve for x
x = 77,207,228,242,897.14/7,407,661.91 - Step 6: Final answer
x = 10,422,617.72
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.