Finding the Fourth Proportional to 154,483,107.61, 213,186,774.61 and 84,872,972.53
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Solution
The fourth proportional to 154,483,107.61, 213,186,774.61 and 84,872,972.53 is: 117,124,749.40
Step by Step Solution
- Step 1: Write the proportion equation
154,483,107.61 : 213,186,774.61 = 84,872,972.53 : x - Step 2: Convert to fraction form
154,483,107.61/213,186,774.61 = 84,872,972.53/x - Step 3: Cross multiply
154,483,107.61x = 213,186,774.61 × 84,872,972.53 - Step 4: Simplify right side
154,483,107.61x = 18,093,795,264,646,572 - Step 5: Solve for x
x = 18,093,795,264,646,572/154,483,107.61 - Step 6: Final answer
x = 117,124,749.40
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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.