Finding the Fourth Proportional to 131,639,885.80, 197,459,828.70 and 63,615,437.80
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Solution
The fourth proportional to 131,639,885.80, 197,459,828.70 and 63,615,437.80 is: 95,423,156.70
Step by Step Solution
- Step 1: Write the proportion equation
131,639,885.80 : 197,459,828.70 = 63,615,437.80 : x - Step 2: Convert to fraction form
131,639,885.80/197,459,828.70 = 63,615,437.80/x - Step 3: Cross multiply
131,639,885.80x = 197,459,828.70 × 63,615,437.80 - Step 4: Simplify right side
131,639,885.80x = 12,561,493,450,663,504 - Step 5: Solve for x
x = 12,561,493,450,663,504/131,639,885.80 - Step 6: Final answer
x = 95,423,156.70
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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.