Finding the Fourth Proportional to 71,269,836.12, 98,352,373.84 and 38,674,788.12
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Solution
The fourth proportional to 71,269,836.12, 98,352,373.84 and 38,674,788.12 is: 53,371,207.60
Step by Step Solution
- Step 1: Write the proportion equation
71,269,836.12 : 98,352,373.84 = 38,674,788.12 : x - Step 2: Convert to fraction form
71,269,836.12/98,352,373.84 = 38,674,788.12/x - Step 3: Cross multiply
71,269,836.12x = 98,352,373.84 × 38,674,788.12 - Step 4: Simplify right side
71,269,836.12x = 3,803,757,219,264,344 - Step 5: Solve for x
x = 3,803,757,219,264,344/71,269,836.12 - Step 6: Final answer
x = 53,371,207.60
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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.