Finding the Fourth Proportional to 39,153,626.05, 54,032,373.29 and 21,512,898.74
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Solution
The fourth proportional to 39,153,626.05, 54,032,373.29 and 21,512,898.74 is: 29,688,003.20
Step by Step Solution
- Step 1: Write the proportion equation
39,153,626.05 : 54,032,373.29 = 21,512,898.74 : x - Step 2: Convert to fraction form
39,153,626.05/54,032,373.29 = 21,512,898.74/x - Step 3: Cross multiply
39,153,626.05x = 54,032,373.29 × 21,512,898.74 - Step 4: Simplify right side
39,153,626.05x = 1,162,392,975,337,503.75 - Step 5: Solve for x
x = 1,162,392,975,337,503.75/39,153,626.05 - Step 6: Final answer
x = 29,688,003.20
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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.