Finding the Fourth Proportional to 40,786,784.19, 56,287,029.74 and 22,203,161.55
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Solution
The fourth proportional to 40,786,784.19, 56,287,029.74 and 22,203,161.55 is: 30,641,052.96
Step by Step Solution
- Step 1: Write the proportion equation
40,786,784.19 : 56,287,029.74 = 22,203,161.55 : x - Step 2: Convert to fraction form
40,786,784.19/56,287,029.74 = 22,203,161.55/x - Step 3: Cross multiply
40,786,784.19x = 56,287,029.74 × 22,203,161.55 - Step 4: Simplify right side
40,786,784.19x = 1,249,750,014,375,858.75 - Step 5: Solve for x
x = 1,249,750,014,375,858.75/40,786,784.19 - Step 6: Final answer
x = 30,641,052.96
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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.