Finding the Fourth Proportional to 80,868,057.30, 121,302,085.95 and 55,358,889.30
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Solution
The fourth proportional to 80,868,057.30, 121,302,085.95 and 55,358,889.30 is: 83,038,333.95
Step by Step Solution
- Step 1: Write the proportion equation
80,868,057.30 : 121,302,085.95 = 55,358,889.30 : x - Step 2: Convert to fraction form
80,868,057.30/121,302,085.95 = 55,358,889.30/x - Step 3: Cross multiply
80,868,057.30x = 121,302,085.95 × 55,358,889.30 - Step 4: Simplify right side
80,868,057.30x = 6,715,148,747,965,135 - Step 5: Solve for x
x = 6,715,148,747,965,135/80,868,057.30 - Step 6: Final answer
x = 83,038,333.95
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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.