Finding the Fourth Proportional to 40,128,340.74, 55,380,525.30 and 22,727,781.42
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Solution
The fourth proportional to 40,128,340.74, 55,380,525.30 and 22,727,781.42 is: 31,366,272.58
Step by Step Solution
- Step 1: Write the proportion equation
40,128,340.74 : 55,380,525.30 = 22,727,781.42 : x - Step 2: Convert to fraction form
40,128,340.74/55,380,525.30 = 22,727,781.42/x - Step 3: Cross multiply
40,128,340.74x = 55,380,525.30 × 22,727,781.42 - Step 4: Simplify right side
40,128,340.74x = 1,258,676,473,943,180 - Step 5: Solve for x
x = 1,258,676,473,943,180/40,128,340.74 - Step 6: Final answer
x = 31,366,272.58
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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.