Finding the Fourth Proportional to 19,474,991.30, 29,212,486.95 and 8,113,963.70
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Solution
The fourth proportional to 19,474,991.30, 29,212,486.95 and 8,113,963.70 is: 12,170,945.55
Step by Step Solution
- Step 1: Write the proportion equation
19,474,991.30 : 29,212,486.95 = 8,113,963.70 : x - Step 2: Convert to fraction form
19,474,991.30/29,212,486.95 = 8,113,963.70/x - Step 3: Cross multiply
19,474,991.30x = 29,212,486.95 × 8,113,963.70 - Step 4: Simplify right side
19,474,991.30x = 237,029,058,699,023.72 - Step 5: Solve for x
x = 237,029,058,699,023.72/19,474,991.30 - Step 6: Final answer
x = 12,170,945.55
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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.