Finding the Fourth Proportional to 70,682,755.80, 106,024,133.70 and 57,245,827.80
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Solution
The fourth proportional to 70,682,755.80, 106,024,133.70 and 57,245,827.80 is: 85,868,741.70
Step by Step Solution
- Step 1: Write the proportion equation
70,682,755.80 : 106,024,133.70 = 57,245,827.80 : x - Step 2: Convert to fraction form
70,682,755.80/106,024,133.70 = 57,245,827.80/x - Step 3: Cross multiply
70,682,755.80x = 106,024,133.70 × 57,245,827.80 - Step 4: Simplify right side
70,682,755.80x = 6,069,439,300,434,377 - Step 5: Solve for x
x = 6,069,439,300,434,377/70,682,755.80 - Step 6: Final answer
x = 85,868,741.70
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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.