Finding the Fourth Proportional to 84,438,148.71, 126,739,125.90 and 40,749,652.65
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Solution
The fourth proportional to 84,438,148.71, 126,739,125.90 and 40,749,652.65 is: 61,164,005.09
Step by Step Solution
- Step 1: Write the proportion equation
84,438,148.71 : 126,739,125.90 = 40,749,652.65 : x - Step 2: Convert to fraction form
84,438,148.71/126,739,125.90 = 40,749,652.65/x - Step 3: Cross multiply
84,438,148.71x = 126,739,125.90 × 40,749,652.65 - Step 4: Simplify right side
84,438,148.71x = 5,164,575,357,589,619 - Step 5: Solve for x
x = 5,164,575,357,589,619/84,438,148.71 - Step 6: Final answer
x = 61,164,005.09
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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.