Finding the Fourth Proportional to 13,134,675.86, 19,702,012.76 and 6,656,742.21
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Solution
The fourth proportional to 13,134,675.86, 19,702,012.76 and 6,656,742.21 is: 9,985,112.80
Step by Step Solution
- Step 1: Write the proportion equation
13,134,675.86 : 19,702,012.76 = 6,656,742.21 : x - Step 2: Convert to fraction form
13,134,675.86/19,702,012.76 = 6,656,742.21/x - Step 3: Cross multiply
13,134,675.86x = 19,702,012.76 × 6,656,742.21 - Step 4: Simplify right side
13,134,675.86x = 131,151,220,027,012.22 - Step 5: Solve for x
x = 131,151,220,027,012.22/13,134,675.86 - Step 6: Final answer
x = 9,985,112.80
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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.