Finding the Fourth Proportional to 426,593,622.87, 639,890,434.39 and 119,885,735.75
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Solution
The fourth proportional to 426,593,622.87, 639,890,434.39 and 119,885,735.75 is: 179,828,603.65
Step by Step Solution
- Step 1: Write the proportion equation
426,593,622.87 : 639,890,434.39 = 119,885,735.75 : x - Step 2: Convert to fraction form
426,593,622.87/639,890,434.39 = 119,885,735.75/x - Step 3: Cross multiply
426,593,622.87x = 639,890,434.39 × 119,885,735.75 - Step 4: Simplify right side
426,593,622.87x = 76,713,735,526,232,256 - Step 5: Solve for x
x = 76,713,735,526,232,256/426,593,622.87 - Step 6: Final answer
x = 179,828,603.65
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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.