Finding the Fourth Proportional to 121,168,656.80, 181,748,319.60 and 40,389,624.80
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Solution
The fourth proportional to 121,168,656.80, 181,748,319.60 and 40,389,624.80 is: 60,582,882.00
Step by Step Solution
- Step 1: Write the proportion equation
121,168,656.80 : 181,748,319.60 = 40,389,624.80 : x - Step 2: Convert to fraction form
121,168,656.80/181,748,319.60 = 40,389,624.80/x - Step 3: Cross multiply
121,168,656.80x = 181,748,319.60 × 40,389,624.80 - Step 4: Simplify right side
121,168,656.80x = 7,340,746,436,674,485 - Step 5: Solve for x
x = 7,340,746,436,674,485/121,168,656.80 - Step 6: Final answer
x = 60,582,882.00
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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.