Finding the Fourth Proportional to 10,255,765.44, 14,157,314.12 and 6,390,196.48
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Solution
The fourth proportional to 10,255,765.44, 14,157,314.12 and 6,390,196.48 is: 8,821,186.42
Step by Step Solution
- Step 1: Write the proportion equation
10,255,765.44 : 14,157,314.12 = 6,390,196.48 : x - Step 2: Convert to fraction form
10,255,765.44/14,157,314.12 = 6,390,196.48/x - Step 3: Cross multiply
10,255,765.44x = 14,157,314.12 × 6,390,196.48 - Step 4: Simplify right side
10,255,765.44x = 90,468,018,855,878.30 - Step 5: Solve for x
x = 90,468,018,855,878.30/10,255,765.44 - Step 6: Final answer
x = 8,821,186.42
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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.