Finding the Fourth Proportional to 5,221,589.91, 7,830,471.24 and 1,808,995.11
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Solution
The fourth proportional to 5,221,589.91, 7,830,471.24 and 1,808,995.11 is: 2,712,829.70
Step by Step Solution
- Step 1: Write the proportion equation
5,221,589.91 : 7,830,471.24 = 1,808,995.11 : x - Step 2: Convert to fraction form
5,221,589.91/7,830,471.24 = 1,808,995.11/x - Step 3: Cross multiply
5,221,589.91x = 7,830,471.24 × 1,808,995.11 - Step 4: Simplify right side
5,221,589.91x = 14,165,284,182,155.64 - Step 5: Solve for x
x = 14,165,284,182,155.64/5,221,589.91 - Step 6: Final answer
x = 2,712,829.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.