Finding the Fourth Proportional to 77,082,219.99, 106,380,191.13 and 42,281,636.52
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Solution
The fourth proportional to 77,082,219.99, 106,380,191.13 and 42,281,636.52 is: 58,352,348.63
Step by Step Solution
- Step 1: Write the proportion equation
77,082,219.99 : 106,380,191.13 = 42,281,636.52 : x - Step 2: Convert to fraction form
77,082,219.99/106,380,191.13 = 42,281,636.52/x - Step 3: Cross multiply
77,082,219.99x = 106,380,191.13 × 42,281,636.52 - Step 4: Simplify right side
77,082,219.99x = 4,497,928,574,286,788 - Step 5: Solve for x
x = 4,497,928,574,286,788/77,082,219.99 - Step 6: Final answer
x = 58,352,348.63
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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.