Finding the Fourth Proportional to 170,202,491.70, 254,925,823.95 and 139,969,403.70
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Solution
The fourth proportional to 170,202,491.70, 254,925,823.95 and 139,969,403.70 is: 209,643,320.79
Step by Step Solution
- Step 1: Write the proportion equation
170,202,491.70 : 254,925,823.95 = 139,969,403.70 : x - Step 2: Convert to fraction form
170,202,491.70/254,925,823.95 = 139,969,403.70/x - Step 3: Cross multiply
170,202,491.70x = 254,925,823.95 × 139,969,403.70 - Step 4: Simplify right side
170,202,491.70x = 35,681,815,566,012,672 - Step 5: Solve for x
x = 35,681,815,566,012,672/170,202,491.70 - Step 6: Final answer
x = 209,643,320.79
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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.