Finding the Fourth Proportional to 38,998,831.48, 53,818,354.26 and 21,595,176.40
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Solution
The fourth proportional to 38,998,831.48, 53,818,354.26 and 21,595,176.40 is: 29,801,325.06
Step by Step Solution
- Step 1: Write the proportion equation
38,998,831.48 : 53,818,354.26 = 21,595,176.40 : x - Step 2: Convert to fraction form
38,998,831.48/53,818,354.26 = 21,595,176.40/x - Step 3: Cross multiply
38,998,831.48x = 53,818,354.26 × 21,595,176.40 - Step 4: Simplify right side
38,998,831.48x = 1,162,216,853,802,391.25 - Step 5: Solve for x
x = 1,162,216,853,802,391.25/38,998,831.48 - Step 6: Final answer
x = 29,801,325.06
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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.