Finding the Fourth Proportional to 13,263,589.05, 18,303,565.26 and 7,462,356.90
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Solution
The fourth proportional to 13,263,589.05, 18,303,565.26 and 7,462,356.90 is: 10,297,946.96
Step by Step Solution
- Step 1: Write the proportion equation
13,263,589.05 : 18,303,565.26 = 7,462,356.90 : x - Step 2: Convert to fraction form
13,263,589.05/18,303,565.26 = 7,462,356.90/x - Step 3: Cross multiply
13,263,589.05x = 18,303,565.26 × 7,462,356.90 - Step 4: Simplify right side
13,263,589.05x = 136,587,736,512,561.31 - Step 5: Solve for x
x = 136,587,736,512,561.31/13,263,589.05 - Step 6: Final answer
x = 10,297,946.96
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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.