Finding the Fourth Proportional to 14,087,438.28, 19,430,603.46 and 12,929,640.48
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Solution
The fourth proportional to 14,087,438.28, 19,430,603.46 and 12,929,640.48 is: 17,833,669.40
Step by Step Solution
- Step 1: Write the proportion equation
14,087,438.28 : 19,430,603.46 = 12,929,640.48 : x - Step 2: Convert to fraction form
14,087,438.28/19,430,603.46 = 12,929,640.48/x - Step 3: Cross multiply
14,087,438.28x = 19,430,603.46 × 12,929,640.48 - Step 4: Simplify right side
14,087,438.28x = 251,230,717,047,244.09 - Step 5: Solve for x
x = 251,230,717,047,244.09/14,087,438.28 - Step 6: Final answer
x = 17,833,669.40
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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.