Finding the Fourth Proportional to 83,014,301.70, 124,185,529.35 and 72,936,605.70
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Solution
The fourth proportional to 83,014,301.70, 124,185,529.35 and 72,936,605.70 is: 109,109,765.45
Step by Step Solution
- Step 1: Write the proportion equation
83,014,301.70 : 124,185,529.35 = 72,936,605.70 : x - Step 2: Convert to fraction form
83,014,301.70/124,185,529.35 = 72,936,605.70/x - Step 3: Cross multiply
83,014,301.70x = 124,185,529.35 × 72,936,605.70 - Step 4: Simplify right side
83,014,301.70x = 9,057,670,987,846,728 - Step 5: Solve for x
x = 9,057,670,987,846,728/83,014,301.70 - Step 6: Final answer
x = 109,109,765.45
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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.