Finding the Fourth Proportional to 34,369,422.36, 47,429,745.12 and 19,689,840.96
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Solution
The fourth proportional to 34,369,422.36, 47,429,745.12 and 19,689,840.96 is: 27,171,947.45
Step by Step Solution
- Step 1: Write the proportion equation
34,369,422.36 : 47,429,745.12 = 19,689,840.96 : x - Step 2: Convert to fraction form
34,369,422.36/47,429,745.12 = 19,689,840.96/x - Step 3: Cross multiply
34,369,422.36x = 47,429,745.12 × 19,689,840.96 - Step 4: Simplify right side
34,369,422.36x = 933,884,138,186,136.12 - Step 5: Solve for x
x = 933,884,138,186,136.12/34,369,422.36 - Step 6: Final answer
x = 27,171,947.45
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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.