Finding the Fourth Proportional to 5,390,420,563.80, 8,085,630,845.70 and 2,488,044,115.80
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Solution
The fourth proportional to 5,390,420,563.80, 8,085,630,845.70 and 2,488,044,115.80 is: 3,732,066,173.70
Step by Step Solution
- Step 1: Write the proportion equation
5,390,420,563.80 : 8,085,630,845.70 = 2,488,044,115.80 : x - Step 2: Convert to fraction form
5,390,420,563.80/8,085,630,845.70 = 2,488,044,115.80/x - Step 3: Cross multiply
5,390,420,563.80x = 8,085,630,845.70 × 2,488,044,115.80 - Step 4: Simplify right side
5,390,420,563.80x = 20,117,406,248,174,862,336 - Step 5: Solve for x
x = 20,117,406,248,174,862,336/5,390,420,563.80 - Step 6: Final answer
x = 3,732,066,173.70
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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.