Finding the Fourth Proportional to 7,180,873.12, 10,771,280.16 and 2,921,005.36
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Solution
The fourth proportional to 7,180,873.12, 10,771,280.16 and 2,921,005.36 is: 4,381,496.03
Step by Step Solution
- Step 1: Write the proportion equation
7,180,873.12 : 10,771,280.16 = 2,921,005.36 : x - Step 2: Convert to fraction form
7,180,873.12/10,771,280.16 = 2,921,005.36/x - Step 3: Cross multiply
7,180,873.12x = 10,771,280.16 × 2,921,005.36 - Step 4: Simplify right side
7,180,873.12x = 31,462,967,081,421.66 - Step 5: Solve for x
x = 31,462,967,081,421.66/7,180,873.12 - Step 6: Final answer
x = 4,381,496.03
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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.