Finding the Fourth Proportional to 217,154,890.27, 299,675,877.95 and 118,035,576.49
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Solution
The fourth proportional to 217,154,890.27, 299,675,877.95 and 118,035,576.49 is: 162,890,252.99
Step by Step Solution
- Step 1: Write the proportion equation
217,154,890.27 : 299,675,877.95 = 118,035,576.49 : x - Step 2: Convert to fraction form
217,154,890.27/299,675,877.95 = 118,035,576.49/x - Step 3: Cross multiply
217,154,890.27x = 299,675,877.95 × 118,035,576.49 - Step 4: Simplify right side
217,154,890.27x = 35,372,415,013,416,888 - Step 5: Solve for x
x = 35,372,415,013,416,888/217,154,890.27 - Step 6: Final answer
x = 162,890,252.99
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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.