Finding the Fourth Proportional to 200,688,369.18, 276,946,551.18 and 112,580,475.09
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Solution
The fourth proportional to 200,688,369.18, 276,946,551.18 and 112,580,475.09 is: 155,359,149.28
Step by Step Solution
- Step 1: Write the proportion equation
200,688,369.18 : 276,946,551.18 = 112,580,475.09 : x - Step 2: Convert to fraction form
200,688,369.18/276,946,551.18 = 112,580,475.09/x - Step 3: Cross multiply
200,688,369.18x = 276,946,551.18 × 112,580,475.09 - Step 4: Simplify right side
200,688,369.18x = 31,178,774,306,381,400 - Step 5: Solve for x
x = 31,178,774,306,381,400/200,688,369.18 - Step 6: Final answer
x = 155,359,149.28
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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.