Finding the Fourth Proportional to 7,900,661.08, 10,902,878.67 and 4,415,995.18
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Solution
The fourth proportional to 7,900,661.08, 10,902,878.67 and 4,415,995.18 is: 6,094,054.56
Step by Step Solution
- Step 1: Write the proportion equation
7,900,661.08 : 10,902,878.67 = 4,415,995.18 : x - Step 2: Convert to fraction form
7,900,661.08/10,902,878.67 = 4,415,995.18/x - Step 3: Cross multiply
7,900,661.08x = 10,902,878.67 × 4,415,995.18 - Step 4: Simplify right side
7,900,661.08x = 48,147,059,654,844.80 - Step 5: Solve for x
x = 48,147,059,654,844.80/7,900,661.08 - Step 6: Final answer
x = 6,094,054.56
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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.