Finding the Fourth Proportional to 87,224,436.80, 130,836,655.20 and 29,781,569.60
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Solution
The fourth proportional to 87,224,436.80, 130,836,655.20 and 29,781,569.60 is: 44,672,354.40
Step by Step Solution
- Step 1: Write the proportion equation
87,224,436.80 : 130,836,655.20 = 29,781,569.60 : x - Step 2: Convert to fraction form
87,224,436.80/130,836,655.20 = 29,781,569.60/x - Step 3: Cross multiply
87,224,436.80x = 130,836,655.20 × 29,781,569.60 - Step 4: Simplify right side
87,224,436.80x = 3,896,520,953,070,002 - Step 5: Solve for x
x = 3,896,520,953,070,002/87,224,436.80 - Step 6: Final answer
x = 44,672,354.40
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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.