Finding the Fourth Proportional to 7,118,330.64, 9,823,247.64 and 3,855,070.32
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Solution
The fourth proportional to 7,118,330.64, 9,823,247.64 and 3,855,070.32 is: 5,319,970.70
Step by Step Solution
- Step 1: Write the proportion equation
7,118,330.64 : 9,823,247.64 = 3,855,070.32 : x - Step 2: Convert to fraction form
7,118,330.64/9,823,247.64 = 3,855,070.32/x - Step 3: Cross multiply
7,118,330.64x = 9,823,247.64 × 3,855,070.32 - Step 4: Simplify right side
7,118,330.64x = 37,869,310,422,974.05 - Step 5: Solve for x
x = 37,869,310,422,974.05/7,118,330.64 - Step 6: Final answer
x = 5,319,970.70
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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.