Finding the Fourth Proportional to 258,457,848.12, 356,674,106.66 and 140,983,700.76
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Solution
The fourth proportional to 258,457,848.12, 356,674,106.66 and 140,983,700.76 is: 194,558,748.70
Step by Step Solution
- Step 1: Write the proportion equation
258,457,848.12 : 356,674,106.66 = 140,983,700.76 : x - Step 2: Convert to fraction form
258,457,848.12/356,674,106.66 = 140,983,700.76/x - Step 3: Cross multiply
258,457,848.12x = 356,674,106.66 × 140,983,700.76 - Step 4: Simplify right side
258,457,848.12x = 50,285,235,522,193,760 - Step 5: Solve for x
x = 50,285,235,522,193,760/258,457,848.12 - Step 6: Final answer
x = 194,558,748.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.