Finding the Fourth Proportional to 90,555,395.58, 124,977,738.65 and 51,409,845.18
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Solution
The fourth proportional to 90,555,395.58, 124,977,738.65 and 51,409,845.18 is: 70,951,997.43
Step by Step Solution
- Step 1: Write the proportion equation
90,555,395.58 : 124,977,738.65 = 51,409,845.18 : x - Step 2: Convert to fraction form
90,555,395.58/124,977,738.65 = 51,409,845.18/x - Step 3: Cross multiply
90,555,395.58x = 124,977,738.65 × 51,409,845.18 - Step 4: Simplify right side
90,555,395.58x = 6,425,086,194,685,953 - Step 5: Solve for x
x = 6,425,086,194,685,953/90,555,395.58 - Step 6: Final answer
x = 70,951,997.43
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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.