Finding the Fourth Proportional to 2,099,537,847.70, 3,149,306,771.55 and 1,320,657,918.10
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Solution
The fourth proportional to 2,099,537,847.70, 3,149,306,771.55 and 1,320,657,918.10 is: 1,980,986,877.15
Step by Step Solution
- Step 1: Write the proportion equation
2,099,537,847.70 : 3,149,306,771.55 = 1,320,657,918.10 : x - Step 2: Convert to fraction form
2,099,537,847.70/3,149,306,771.55 = 1,320,657,918.10/x - Step 3: Cross multiply
2,099,537,847.70x = 3,149,306,771.55 × 1,320,657,918.10 - Step 4: Simplify right side
2,099,537,847.70x = 4,159,156,924,373,455,360 - Step 5: Solve for x
x = 4,159,156,924,373,455,360/2,099,537,847.70 - Step 6: Final answer
x = 1,980,986,877.15
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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.