Finding the Fourth Proportional to 13,286,560.55, 19,929,841.08 and 3,189,181.55
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Solution
The fourth proportional to 13,286,560.55, 19,929,841.08 and 3,189,181.55 is: 4,783,772.38
Step by Step Solution
- Step 1: Write the proportion equation
13,286,560.55 : 19,929,841.08 = 3,189,181.55 : x - Step 2: Convert to fraction form
13,286,560.55/19,929,841.08 = 3,189,181.55/x - Step 3: Cross multiply
13,286,560.55x = 19,929,841.08 × 3,189,181.55 - Step 4: Simplify right side
13,286,560.55x = 63,559,881,367,118.86 - Step 5: Solve for x
x = 63,559,881,367,118.86/13,286,560.55 - Step 6: Final answer
x = 4,783,772.38
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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.