Finding the Fourth Proportional to 42,127,776.72, 63,193,853.16 and 13,376,163.60
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Solution
The fourth proportional to 42,127,776.72, 63,193,853.16 and 13,376,163.60 is: 20,064,940.15
Step by Step Solution
- Step 1: Write the proportion equation
42,127,776.72 : 63,193,853.16 = 13,376,163.60 : x - Step 2: Convert to fraction form
42,127,776.72/63,193,853.16 = 13,376,163.60/x - Step 3: Cross multiply
42,127,776.72x = 63,193,853.16 × 13,376,163.60 - Step 4: Simplify right side
42,127,776.72x = 845,291,318,382,536.88 - Step 5: Solve for x
x = 845,291,318,382,536.88/42,127,776.72 - Step 6: Final answer
x = 20,064,940.15
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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.