Finding the Fourth Proportional to 6,439,945.41, 8,887,337.70 and 3,539,439.09
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Solution
The fourth proportional to 6,439,945.41, 8,887,337.70 and 3,539,439.09 is: 4,884,543.03
Step by Step Solution
- Step 1: Write the proportion equation
6,439,945.41 : 8,887,337.70 = 3,539,439.09 : x - Step 2: Convert to fraction form
6,439,945.41/8,887,337.70 = 3,539,439.09/x - Step 3: Cross multiply
6,439,945.41x = 8,887,337.70 × 3,539,439.09 - Step 4: Simplify right side
6,439,945.41x = 31,456,190,461,410.69 - Step 5: Solve for x
x = 31,456,190,461,410.69/6,439,945.41 - Step 6: Final answer
x = 4,884,543.03
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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.