Finding the Fourth Proportional to 71,720,408.33, 98,966,532.10 and 40,357,910.70
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Solution
The fourth proportional to 71,720,408.33, 98,966,532.10 and 40,357,910.70 is: 55,689,622.49
Step by Step Solution
- Step 1: Write the proportion equation
71,720,408.33 : 98,966,532.10 = 40,357,910.70 : x - Step 2: Convert to fraction form
71,720,408.33/98,966,532.10 = 40,357,910.70/x - Step 3: Cross multiply
71,720,408.33x = 98,966,532.10 × 40,357,910.70 - Step 4: Simplify right side
71,720,408.33x = 3,994,082,464,780,483.50 - Step 5: Solve for x
x = 3,994,082,464,780,483.50/71,720,408.33 - Step 6: Final answer
x = 55,689,622.49
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.