Finding the Fourth Proportional to 513,363,633.18, 769,990,860.81 and 144,889,475.10
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Solution
The fourth proportional to 513,363,633.18, 769,990,860.81 and 144,889,475.10 is: 217,318,805.70
Step by Step Solution
- Step 1: Write the proportion equation
513,363,633.18 : 769,990,860.81 = 144,889,475.10 : x - Step 2: Convert to fraction form
513,363,633.18/769,990,860.81 = 144,889,475.10/x - Step 3: Cross multiply
513,363,633.18x = 769,990,860.81 × 144,889,475.10 - Step 4: Simplify right side
513,363,633.18x = 111,563,571,654,558,048 - Step 5: Solve for x
x = 111,563,571,654,558,048/513,363,633.18 - Step 6: Final answer
x = 217,318,805.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.