Finding the Fourth Proportional to 17,556,371.80, 26,334,557.70 and 15,430,607.80
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Solution
The fourth proportional to 17,556,371.80, 26,334,557.70 and 15,430,607.80 is: 23,145,911.70
Step by Step Solution
- Step 1: Write the proportion equation
17,556,371.80 : 26,334,557.70 = 15,430,607.80 : x - Step 2: Convert to fraction form
17,556,371.80/26,334,557.70 = 15,430,607.80/x - Step 3: Cross multiply
17,556,371.80x = 26,334,557.70 × 15,430,607.80 - Step 4: Simplify right side
17,556,371.80x = 406,358,231,455,170.06 - Step 5: Solve for x
x = 406,358,231,455,170.06/17,556,371.80 - Step 6: Final answer
x = 23,145,911.70
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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.