Finding the Fourth Proportional to 165,564,134.80, 248,346,202.20 and 162,162,912.40
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Solution
The fourth proportional to 165,564,134.80, 248,346,202.20 and 162,162,912.40 is: 243,244,368.60
Step by Step Solution
- Step 1: Write the proportion equation
165,564,134.80 : 248,346,202.20 = 162,162,912.40 : x - Step 2: Convert to fraction form
165,564,134.80/248,346,202.20 = 162,162,912.40/x - Step 3: Cross multiply
165,564,134.80x = 248,346,202.20 × 162,162,912.40 - Step 4: Simplify right side
165,564,134.80x = 40,272,543,432,231,288 - Step 5: Solve for x
x = 40,272,543,432,231,288/165,564,134.80 - Step 6: Final answer
x = 243,244,368.60
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1.5x scale
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.