Finding the Fourth Proportional to 84,248,632.90, 126,372,949.35 and 47,842,956.10
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Solution
The fourth proportional to 84,248,632.90, 126,372,949.35 and 47,842,956.10 is: 71,764,434.15
Step by Step Solution
- Step 1: Write the proportion equation
84,248,632.90 : 126,372,949.35 = 47,842,956.10 : x - Step 2: Convert to fraction form
84,248,632.90/126,372,949.35 = 47,842,956.10/x - Step 3: Cross multiply
84,248,632.90x = 126,372,949.35 × 47,842,956.10 - Step 4: Simplify right side
84,248,632.90x = 6,046,055,467,979,573 - Step 5: Solve for x
x = 6,046,055,467,979,573/84,248,632.90 - Step 6: Final answer
x = 71,764,434.15
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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.