Finding the Fourth Proportional to 126,225,318.30, 189,337,977.45 and 39,970,475.70
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Solution
The fourth proportional to 126,225,318.30, 189,337,977.45 and 39,970,475.70 is: 59,955,713.55
Step by Step Solution
- Step 1: Write the proportion equation
126,225,318.30 : 189,337,977.45 = 39,970,475.70 : x - Step 2: Convert to fraction form
126,225,318.30/189,337,977.45 = 39,970,475.70/x - Step 3: Cross multiply
126,225,318.30x = 189,337,977.45 × 39,970,475.70 - Step 4: Simplify right side
126,225,318.30x = 7,567,929,026,752,373 - Step 5: Solve for x
x = 7,567,929,026,752,373/126,225,318.30 - Step 6: Final answer
x = 59,955,713.55
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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.