Finding the Fourth Proportional to 751,439,485.72, 1,036,951,357.58 and 416,908,447.88
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Solution
The fourth proportional to 751,439,485.72, 1,036,951,357.58 and 416,908,447.88 is: 575,314,165.99
Step by Step Solution
- Step 1: Write the proportion equation
751,439,485.72 : 1,036,951,357.58 = 416,908,447.88 : x - Step 2: Convert to fraction form
751,439,485.72/1,036,951,357.58 = 416,908,447.88/x - Step 3: Cross multiply
751,439,485.72x = 1,036,951,357.58 × 416,908,447.88 - Step 4: Simplify right side
751,439,485.72x = 432,313,781,015,736,704 - Step 5: Solve for x
x = 432,313,781,015,736,704/751,439,485.72 - Step 6: Final answer
x = 575,314,165.99
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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.