Finding the Fourth Proportional to 651,504,908.70, 977,257,363.05 and 393,012,006.30
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Solution
The fourth proportional to 651,504,908.70, 977,257,363.05 and 393,012,006.30 is: 589,518,009.45
Step by Step Solution
- Step 1: Write the proportion equation
651,504,908.70 : 977,257,363.05 = 393,012,006.30 : x - Step 2: Convert to fraction form
651,504,908.70/977,257,363.05 = 393,012,006.30/x - Step 3: Cross multiply
651,504,908.70x = 977,257,363.05 × 393,012,006.30 - Step 4: Simplify right side
651,504,908.70x = 384,073,876,923,728,000 - Step 5: Solve for x
x = 384,073,876,923,728,000/651,504,908.70 - Step 6: Final answer
x = 589,518,009.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.