Finding the Fourth Proportional to 159,458,545.80, 239,187,818.70 and 38,289,997.80
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Solution
The fourth proportional to 159,458,545.80, 239,187,818.70 and 38,289,997.80 is: 57,434,996.70
Step by Step Solution
- Step 1: Write the proportion equation
159,458,545.80 : 239,187,818.70 = 38,289,997.80 : x - Step 2: Convert to fraction form
159,458,545.80/239,187,818.70 = 38,289,997.80/x - Step 3: Cross multiply
159,458,545.80x = 239,187,818.70 × 38,289,997.80 - Step 4: Simplify right side
159,458,545.80x = 9,158,501,051,809,798 - Step 5: Solve for x
x = 9,158,501,051,809,798/159,458,545.80 - Step 6: Final answer
x = 57,434,996.70
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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.