Finding the Fourth Proportional to 10,142,644.53, 15,214,670.05 and 4,077,378.66
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Solution
The fourth proportional to 10,142,644.53, 15,214,670.05 and 4,077,378.66 is: 6,116,350.70
Step by Step Solution
- Step 1: Write the proportion equation
10,142,644.53 : 15,214,670.05 = 4,077,378.66 : x - Step 2: Convert to fraction form
10,142,644.53/15,214,670.05 = 4,077,378.66/x - Step 3: Cross multiply
10,142,644.53x = 15,214,670.05 × 4,077,378.66 - Step 4: Simplify right side
10,142,644.53x = 62,035,970,980,811.14 - Step 5: Solve for x
x = 62,035,970,980,811.14/10,142,644.53 - Step 6: Final answer
x = 6,116,350.70
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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.