Finding the Fourth Proportional to 10,128,487.25, 13,977,312.01 and 5,544,808.63
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Solution
The fourth proportional to 10,128,487.25, 13,977,312.01 and 5,544,808.63 is: 7,651,835.69
Step by Step Solution
- Step 1: Write the proportion equation
10,128,487.25 : 13,977,312.01 = 5,544,808.63 : x - Step 2: Convert to fraction form
10,128,487.25/13,977,312.01 = 5,544,808.63/x - Step 3: Cross multiply
10,128,487.25x = 13,977,312.01 × 5,544,808.63 - Step 4: Simplify right side
10,128,487.25x = 77,501,520,208,445.36 - Step 5: Solve for x
x = 77,501,520,208,445.36/10,128,487.25 - Step 6: Final answer
x = 7,651,835.69
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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.