Finding the Fourth Proportional to 5,331,555.09, 7,357,548.20 and 2,884,165.61
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Solution
The fourth proportional to 5,331,555.09, 7,357,548.20 and 2,884,165.61 is: 3,980,149.71
Step by Step Solution
- Step 1: Write the proportion equation
5,331,555.09 : 7,357,548.20 = 2,884,165.61 : x - Step 2: Convert to fraction form
5,331,555.09/7,357,548.20 = 2,884,165.61/x - Step 3: Cross multiply
5,331,555.09x = 7,357,548.20 × 2,884,165.61 - Step 4: Simplify right side
5,331,555.09x = 21,220,387,441,148.83 - Step 5: Solve for x
x = 21,220,387,441,148.83/5,331,555.09 - Step 6: Final answer
x = 3,980,149.71
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1.5x scale
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.