Finding the Fourth Proportional to 27,630,309.53, 38,129,159.01 and 15,240,136.84
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Solution
The fourth proportional to 27,630,309.53, 38,129,159.01 and 15,240,136.84 is: 21,031,020.30
Step by Step Solution
- Step 1: Write the proportion equation
27,630,309.53 : 38,129,159.01 = 15,240,136.84 : x - Step 2: Convert to fraction form
27,630,309.53/38,129,159.01 = 15,240,136.84/x - Step 3: Cross multiply
27,630,309.53x = 38,129,159.01 × 15,240,136.84 - Step 4: Simplify right side
27,630,309.53x = 581,093,600,782,620.75 - Step 5: Solve for x
x = 581,093,600,782,620.75/27,630,309.53 - Step 6: Final answer
x = 21,031,020.30
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.