Finding the Fourth Proportional to 90,555,397.08, 124,977,740.72 and 51,409,846.68
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Solution
The fourth proportional to 90,555,397.08, 124,977,740.72 and 51,409,846.68 is: 70,951,999.50
Step by Step Solution
- Step 1: Write the proportion equation
90,555,397.08 : 124,977,740.72 = 51,409,846.68 : x - Step 2: Convert to fraction form
90,555,397.08/124,977,740.72 = 51,409,846.68/x - Step 3: Cross multiply
90,555,397.08x = 124,977,740.72 × 51,409,846.68 - Step 4: Simplify right side
90,555,397.08x = 6,425,086,488,570,944 - Step 5: Solve for x
x = 6,425,086,488,570,944/90,555,397.08 - Step 6: Final answer
x = 70,951,999.50
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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.