Finding the Fourth Proportional to 7,168,964.64, 10,765,720.08 and 4,788,108.96
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Solution
The fourth proportional to 7,168,964.64, 10,765,720.08 and 4,788,108.96 is: 7,190,360.58
Step by Step Solution
- Step 1: Write the proportion equation
7,168,964.64 : 10,765,720.08 = 4,788,108.96 : x - Step 2: Convert to fraction form
7,168,964.64/10,765,720.08 = 4,788,108.96/x - Step 3: Cross multiply
7,168,964.64x = 10,765,720.08 × 4,788,108.96 - Step 4: Simplify right side
7,168,964.64x = 51,547,440,775,899.91 - Step 5: Solve for x
x = 51,547,440,775,899.91/7,168,964.64 - Step 6: Final answer
x = 7,190,360.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.