Finding the Fourth Proportional to 126,372,215.80, 189,558,323.70 and 107,240,339.80
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Solution
The fourth proportional to 126,372,215.80, 189,558,323.70 and 107,240,339.80 is: 160,860,509.70
Step by Step Solution
- Step 1: Write the proportion equation
126,372,215.80 : 189,558,323.70 = 107,240,339.80 : x - Step 2: Convert to fraction form
126,372,215.80/189,558,323.70 = 107,240,339.80/x - Step 3: Cross multiply
126,372,215.80x = 189,558,323.70 × 107,240,339.80 - Step 4: Simplify right side
126,372,215.80x = 20,328,299,045,506,392 - Step 5: Solve for x
x = 20,328,299,045,506,392/126,372,215.80 - Step 6: Final answer
x = 160,860,509.70
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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.