Finding the Fourth Proportional to 20,888,135.67, 31,332,590.34 and 7,241,726.79
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Solution
The fourth proportional to 20,888,135.67, 31,332,590.34 and 7,241,726.79 is: 10,862,724.30
Step by Step Solution
- Step 1: Write the proportion equation
20,888,135.67 : 31,332,590.34 = 7,241,726.79 : x - Step 2: Convert to fraction form
20,888,135.67/31,332,590.34 = 7,241,726.79/x - Step 3: Cross multiply
20,888,135.67x = 31,332,590.34 × 7,241,726.79 - Step 4: Simplify right side
20,888,135.67x = 226,902,058,865,273.22 - Step 5: Solve for x
x = 226,902,058,865,273.22/20,888,135.67 - Step 6: Final answer
x = 10,862,724.30
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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.