Finding the Fourth Proportional to 6,461,945,389.28, 8,918,193,209.64 and 3,749,810,647.52
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Solution
The fourth proportional to 6,461,945,389.28, 8,918,193,209.64 and 3,749,810,647.52 is: 5,175,149,871.99
Step by Step Solution
- Step 1: Write the proportion equation
6,461,945,389.28 : 8,918,193,209.64 = 3,749,810,647.52 : x - Step 2: Convert to fraction form
6,461,945,389.28/8,918,193,209.64 = 3,749,810,647.52/x - Step 3: Cross multiply
6,461,945,389.28x = 8,918,193,209.64 × 3,749,810,647.52 - Step 4: Simplify right side
6,461,945,389.28x = 33,441,535,854,148,632,576 - Step 5: Solve for x
x = 33,441,535,854,148,632,576/6,461,945,389.28 - Step 6: Final answer
x = 5,175,149,871.99
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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.