Finding the Fourth Proportional to 85,528,151.70, 128,292,227.55 and 84,252,693.30
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Solution
The fourth proportional to 85,528,151.70, 128,292,227.55 and 84,252,693.30 is: 126,379,039.95
Step by Step Solution
- Step 1: Write the proportion equation
85,528,151.70 : 128,292,227.55 = 84,252,693.30 : x - Step 2: Convert to fraction form
85,528,151.70/128,292,227.55 = 84,252,693.30/x - Step 3: Cross multiply
85,528,151.70x = 128,292,227.55 × 84,252,693.30 - Step 4: Simplify right side
85,528,151.70x = 10,808,965,700,543,960 - Step 5: Solve for x
x = 10,808,965,700,543,960/85,528,151.70 - Step 6: Final answer
x = 126,379,039.95
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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.