Finding the Fourth Proportional to 5,391,915,124.80, 8,087,872,687.20 and 4,472,829,249.60
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Solution
The fourth proportional to 5,391,915,124.80, 8,087,872,687.20 and 4,472,829,249.60 is: 6,709,243,874.40
Step by Step Solution
- Step 1: Write the proportion equation
5,391,915,124.80 : 8,087,872,687.20 = 4,472,829,249.60 : x - Step 2: Convert to fraction form
5,391,915,124.80/8,087,872,687.20 = 4,472,829,249.60/x - Step 3: Cross multiply
5,391,915,124.80x = 8,087,872,687.20 × 4,472,829,249.60 - Step 4: Simplify right side
5,391,915,124.80x = 36,175,673,522,349,113,344 - Step 5: Solve for x
x = 36,175,673,522,349,113,344/5,391,915,124.80 - Step 6: Final answer
x = 6,709,243,874.40
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1.5x scale
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.