Finding the Fourth Proportional to 88,128,542.30, 132,192,813.45 and 71,122,430.30
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Solution
The fourth proportional to 88,128,542.30, 132,192,813.45 and 71,122,430.30 is: 106,683,645.45
Step by Step Solution
- Step 1: Write the proportion equation
88,128,542.30 : 132,192,813.45 = 71,122,430.30 : x - Step 2: Convert to fraction form
88,128,542.30/132,192,813.45 = 71,122,430.30/x - Step 3: Cross multiply
88,128,542.30x = 132,192,813.45 × 71,122,430.30 - Step 4: Simplify right side
88,128,542.30x = 9,401,874,160,758,528 - Step 5: Solve for x
x = 9,401,874,160,758,528/88,128,542.30 - Step 6: Final answer
x = 106,683,645.45
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1.5x scale
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.