Finding the Fourth Proportional to 66,815,535.36, 100,238,215.68 and 21,380,056.32
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Solution
The fourth proportional to 66,815,535.36, 100,238,215.68 and 21,380,056.32 is: 32,074,856.32
Step by Step Solution
- Step 1: Write the proportion equation
66,815,535.36 : 100,238,215.68 = 21,380,056.32 : x - Step 2: Convert to fraction form
66,815,535.36/100,238,215.68 = 21,380,056.32/x - Step 3: Cross multiply
66,815,535.36x = 100,238,215.68 × 21,380,056.32 - Step 4: Simplify right side
66,815,535.36x = 2,143,098,696,654,707.25 - Step 5: Solve for x
x = 2,143,098,696,654,707.25/66,815,535.36 - Step 6: Final answer
x = 32,074,856.32
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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.