Finding the Fourth Proportional to 75,551,831.80, 113,327,747.70 and 69,505,214.20
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Solution
The fourth proportional to 75,551,831.80, 113,327,747.70 and 69,505,214.20 is: 104,257,821.30
Step by Step Solution
- Step 1: Write the proportion equation
75,551,831.80 : 113,327,747.70 = 69,505,214.20 : x - Step 2: Convert to fraction form
75,551,831.80/113,327,747.70 = 69,505,214.20/x - Step 3: Cross multiply
75,551,831.80x = 113,327,747.70 × 69,505,214.20 - Step 4: Simplify right side
75,551,831.80x = 7,876,869,378,692,058 - Step 5: Solve for x
x = 7,876,869,378,692,058/75,551,831.80 - Step 6: Final answer
x = 104,257,821.30
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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.