Finding the Fourth Proportional to 145,013,548.70, 217,520,323.05 and 83,707,564.70
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Solution
The fourth proportional to 145,013,548.70, 217,520,323.05 and 83,707,564.70 is: 125,561,347.05
Step by Step Solution
- Step 1: Write the proportion equation
145,013,548.70 : 217,520,323.05 = 83,707,564.70 : x - Step 2: Convert to fraction form
145,013,548.70/217,520,323.05 = 83,707,564.70/x - Step 3: Cross multiply
145,013,548.70x = 217,520,323.05 × 83,707,564.70 - Step 4: Simplify right side
145,013,548.70x = 18,208,096,515,272,776 - Step 5: Solve for x
x = 18,208,096,515,272,776/145,013,548.70 - Step 6: Final answer
x = 125,561,347.05
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1.5x scale
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.