Finding the Fourth Proportional to 27,695,818.19, 38,220,347.67 and 15,137,126.51
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Solution
The fourth proportional to 27,695,818.19, 38,220,347.67 and 15,137,126.51 is: 20,889,299.38
Step by Step Solution
- Step 1: Write the proportion equation
27,695,818.19 : 38,220,347.67 = 15,137,126.51 : x - Step 2: Convert to fraction form
27,695,818.19/38,220,347.67 = 15,137,126.51/x - Step 3: Cross multiply
27,695,818.19x = 38,220,347.67 × 15,137,126.51 - Step 4: Simplify right side
27,695,818.19x = 578,546,237,745,872 - Step 5: Solve for x
x = 578,546,237,745,872/27,695,818.19 - Step 6: Final answer
x = 20,889,299.38
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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.