Finding the Fourth Proportional to 13,171,854.45, 19,777,204.35 and 7,347,420.42
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Solution
The fourth proportional to 13,171,854.45, 19,777,204.35 and 7,347,420.42 is: 11,031,964.83
Step by Step Solution
- Step 1: Write the proportion equation
13,171,854.45 : 19,777,204.35 = 7,347,420.42 : x - Step 2: Convert to fraction form
13,171,854.45/19,777,204.35 = 7,347,420.42/x - Step 3: Cross multiply
13,171,854.45x = 19,777,204.35 × 7,347,420.42 - Step 4: Simplify right side
13,171,854.45x = 145,311,435,091,702.84 - Step 5: Solve for x
x = 145,311,435,091,702.84/13,171,854.45 - Step 6: Final answer
x = 11,031,964.83
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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.