Finding the Fourth Proportional to 38,972,861.80, 58,459,292.70 and 17,697,725.80
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Solution
The fourth proportional to 38,972,861.80, 58,459,292.70 and 17,697,725.80 is: 26,546,588.70
Step by Step Solution
- Step 1: Write the proportion equation
38,972,861.80 : 58,459,292.70 = 17,697,725.80 : x - Step 2: Convert to fraction form
38,972,861.80/58,459,292.70 = 17,697,725.80/x - Step 3: Cross multiply
38,972,861.80x = 58,459,292.70 × 17,697,725.80 - Step 4: Simplify right side
38,972,861.80x = 1,034,596,532,666,541.75 - Step 5: Solve for x
x = 1,034,596,532,666,541.75/38,972,861.80 - Step 6: Final answer
x = 26,546,588.70
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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.