Finding the Fourth Proportional to 3,191,267,592.36, 4,405,124,455.38 and 1,921,167,610.56
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Solution
The fourth proportional to 3,191,267,592.36, 4,405,124,455.38 and 1,921,167,610.56 is: 2,651,918,768.71
Step by Step Solution
- Step 1: Write the proportion equation
3,191,267,592.36 : 4,405,124,455.38 = 1,921,167,610.56 : x - Step 2: Convert to fraction form
3,191,267,592.36/4,405,124,455.38 = 1,921,167,610.56/x - Step 3: Cross multiply
3,191,267,592.36x = 4,405,124,455.38 × 1,921,167,610.56 - Step 4: Simplify right side
3,191,267,592.36x = 8,462,982,424,161,815,552 - Step 5: Solve for x
x = 8,462,982,424,161,815,552/3,191,267,592.36 - Step 6: Final answer
x = 2,651,918,768.71
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1.5x scale
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.