Finding the Fourth Proportional to 1,879,749,745.12, 2,819,311,878.96 and 569,340,242.08
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Solution
The fourth proportional to 1,879,749,745.12, 2,819,311,878.96 and 569,340,242.08 is: 853,915,640.54
Step by Step Solution
- Step 1: Write the proportion equation
1,879,749,745.12 : 2,819,311,878.96 = 569,340,242.08 : x - Step 2: Convert to fraction form
1,879,749,745.12/2,819,311,878.96 = 569,340,242.08/x - Step 3: Cross multiply
1,879,749,745.12x = 2,819,311,878.96 × 569,340,242.08 - Step 4: Simplify right side
1,879,749,745.12x = 1,605,147,707,666,106,112 - Step 5: Solve for x
x = 1,605,147,707,666,106,112/1,879,749,745.12 - Step 6: Final answer
x = 853,915,640.54
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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.