Finding the Fourth Proportional to 61,128,201.70, 91,692,302.55 and 61,128,201.70
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Solution
The fourth proportional to 61,128,201.70, 91,692,302.55 and 61,128,201.70 is: 91,692,302.55
Step by Step Solution
- Step 1: Write the proportion equation
61,128,201.70 : 91,692,302.55 = 61,128,201.70 : x - Step 2: Convert to fraction form
61,128,201.70/91,692,302.55 = 61,128,201.70/x - Step 3: Cross multiply
61,128,201.70x = 91,692,302.55 × 61,128,201.70 - Step 4: Simplify right side
61,128,201.70x = 5,604,985,564,613,824 - Step 5: Solve for x
x = 5,604,985,564,613,824/61,128,201.70 - Step 6: Final answer
x = 91,692,302.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.