Finding the Fourth Proportional to 57,088,202.76, 78,781,759.63 and 30,982,720.05
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Solution
The fourth proportional to 57,088,202.76, 78,781,759.63 and 30,982,720.05 is: 42,756,175.28
Step by Step Solution
- Step 1: Write the proportion equation
57,088,202.76 : 78,781,759.63 = 30,982,720.05 : x - Step 2: Convert to fraction form
57,088,202.76/78,781,759.63 = 30,982,720.05/x - Step 3: Cross multiply
57,088,202.76x = 78,781,759.63 × 30,982,720.05 - Step 4: Simplify right side
57,088,202.76x = 2,440,873,203,585,225 - Step 5: Solve for x
x = 2,440,873,203,585,225/57,088,202.76 - Step 6: Final answer
x = 42,756,175.28
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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.