Finding the Fourth Proportional to 1,001,851,417.11, 1,382,399,040.51 and 572,682,579.60
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Solution
The fourth proportional to 1,001,851,417.11, 1,382,399,040.51 and 572,682,579.60 is: 790,212,834.99
Step by Step Solution
- Step 1: Write the proportion equation
1,001,851,417.11 : 1,382,399,040.51 = 572,682,579.60 : x - Step 2: Convert to fraction form
1,001,851,417.11/1,382,399,040.51 = 572,682,579.60/x - Step 3: Cross multiply
1,001,851,417.11x = 1,382,399,040.51 × 572,682,579.60 - Step 4: Simplify right side
1,001,851,417.11x = 791,675,848,555,831,680 - Step 5: Solve for x
x = 791,675,848,555,831,680/1,001,851,417.11 - Step 6: Final answer
x = 790,212,834.99
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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.