Finding the Fourth Proportional to 18,366,089.20, 27,549,133.80 and 10,403,465.20
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Solution
The fourth proportional to 18,366,089.20, 27,549,133.80 and 10,403,465.20 is: 15,605,197.80
Step by Step Solution
- Step 1: Write the proportion equation
18,366,089.20 : 27,549,133.80 = 10,403,465.20 : x - Step 2: Convert to fraction form
18,366,089.20/27,549,133.80 = 10,403,465.20/x - Step 3: Cross multiply
18,366,089.20x = 27,549,133.80 × 10,403,465.20 - Step 4: Simplify right side
18,366,089.20x = 286,606,454,778,443.75 - Step 5: Solve for x
x = 286,606,454,778,443.75/18,366,089.20 - Step 6: Final answer
x = 15,605,197.80
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1.5x scale
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.