Finding the Fourth Proportional to 76,805,626.49, 115,189,264.05 and 30,128,599.70
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Solution
The fourth proportional to 76,805,626.49, 115,189,264.05 and 30,128,599.70 is: 45,185,377.49
Step by Step Solution
- Step 1: Write the proportion equation
76,805,626.49 : 115,189,264.05 = 30,128,599.70 : x - Step 2: Convert to fraction form
76,805,626.49/115,189,264.05 = 30,128,599.70/x - Step 3: Cross multiply
76,805,626.49x = 115,189,264.05 × 30,128,599.70 - Step 4: Simplify right side
76,805,626.49x = 3,470,491,226,300,050.50 - Step 5: Solve for x
x = 3,470,491,226,300,050.50/76,805,626.49 - Step 6: Final answer
x = 45,185,377.49
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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.