Finding the Fourth Proportional to 503,874,663.42, 695,645,311.97 and 447,965,658.84
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Solution
The fourth proportional to 503,874,663.42, 695,645,311.97 and 447,965,658.84 is: 618,457,789.44
Step by Step Solution
- Step 1: Write the proportion equation
503,874,663.42 : 695,645,311.97 = 447,965,658.84 : x - Step 2: Convert to fraction form
503,874,663.42/695,645,311.97 = 447,965,658.84/x - Step 3: Cross multiply
503,874,663.42x = 695,645,311.97 × 447,965,658.84 - Step 4: Simplify right side
503,874,663.42x = 311,625,210,495,598,400 - Step 5: Solve for x
x = 311,625,210,495,598,400/503,874,663.42 - Step 6: Final answer
x = 618,457,789.44
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1.5x scale
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.