Finding the Fourth Proportional to 260,593,011.36, 390,889,186.38 and 66,504,430.80
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Solution
The fourth proportional to 260,593,011.36, 390,889,186.38 and 66,504,430.80 is: 99,756,561.81
Step by Step Solution
- Step 1: Write the proportion equation
260,593,011.36 : 390,889,186.38 = 66,504,430.80 : x - Step 2: Convert to fraction form
260,593,011.36/390,889,186.38 = 66,504,430.80/x - Step 3: Cross multiply
260,593,011.36x = 390,889,186.38 × 66,504,430.80 - Step 4: Simplify right side
260,593,011.36x = 25,995,862,846,077,012 - Step 5: Solve for x
x = 25,995,862,846,077,012/260,593,011.36 - Step 6: Final answer
x = 99,756,561.81
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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.