Finding the Fourth Proportional to 18,483,657.80, 25,507,332.90 and 10,223,572.12
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Solution
The fourth proportional to 18,483,657.80, 25,507,332.90 and 10,223,572.12 is: 14,108,465.99
Step by Step Solution
- Step 1: Write the proportion equation
18,483,657.80 : 25,507,332.90 = 10,223,572.12 : x - Step 2: Convert to fraction form
18,483,657.80/25,507,332.90 = 10,223,572.12/x - Step 3: Cross multiply
18,483,657.80x = 25,507,332.90 × 10,223,572.12 - Step 4: Simplify right side
18,483,657.80x = 260,776,057,491,998.72 - Step 5: Solve for x
x = 260,776,057,491,998.72/18,483,657.80 - Step 6: Final answer
x = 14,108,465.99
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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.