Finding the Fourth Proportional to 104,288,518.52, 143,918,313.20 and 56,603,789.99
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Solution
The fourth proportional to 104,288,518.52, 143,918,313.20 and 56,603,789.99 is: 78,113,315.75
Step by Step Solution
- Step 1: Write the proportion equation
104,288,518.52 : 143,918,313.20 = 56,603,789.99 : x - Step 2: Convert to fraction form
104,288,518.52/143,918,313.20 = 56,603,789.99/x - Step 3: Cross multiply
104,288,518.52x = 143,918,313.20 × 56,603,789.99 - Step 4: Simplify right side
104,288,518.52x = 8,146,321,976,087,844 - Step 5: Solve for x
x = 8,146,321,976,087,844/104,288,518.52 - Step 6: Final answer
x = 78,113,315.75
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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.