Finding the Fourth Proportional to 129,523,946.48, 194,230,616.58 and 74,974,185.02
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Solution
The fourth proportional to 129,523,946.48, 194,230,616.58 and 74,974,185.02 is: 112,429,265.63
Step by Step Solution
- Step 1: Write the proportion equation
129,523,946.48 : 194,230,616.58 = 74,974,185.02 : x - Step 2: Convert to fraction form
129,523,946.48/194,230,616.58 = 74,974,185.02/x - Step 3: Cross multiply
129,523,946.48x = 194,230,616.58 × 74,974,185.02 - Step 4: Simplify right side
129,523,946.48x = 14,562,282,184,017,600 - Step 5: Solve for x
x = 14,562,282,184,017,600/129,523,946.48 - Step 6: Final answer
x = 112,429,265.63
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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.