Finding the Fourth Proportional to 121,168,984.80, 181,748,811.60 and 40,389,952.80
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Solution
The fourth proportional to 121,168,984.80, 181,748,811.60 and 40,389,952.80 is: 60,583,373.99
Step by Step Solution
- Step 1: Write the proportion equation
121,168,984.80 : 181,748,811.60 = 40,389,952.80 : x - Step 2: Convert to fraction form
121,168,984.80/181,748,811.60 = 40,389,952.80/x - Step 3: Cross multiply
121,168,984.80x = 181,748,811.60 × 40,389,952.80 - Step 4: Simplify right side
121,168,984.80x = 7,340,825,921,980,092 - Step 5: Solve for x
x = 7,340,825,921,980,092/121,168,984.80 - Step 6: Final answer
x = 60,583,373.99
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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.