Finding the Fourth Proportional to 1,511,545,704.40, 2,267,157,374.70 and 528,991,011.55
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Solution
The fourth proportional to 1,511,545,704.40, 2,267,157,374.70 and 528,991,011.55 is: 793,430,108.99
Step by Step Solution
- Step 1: Write the proportion equation
1,511,545,704.40 : 2,267,157,374.70 = 528,991,011.55 : x - Step 2: Convert to fraction form
1,511,545,704.40/2,267,157,374.70 = 528,991,011.55/x - Step 3: Cross multiply
1,511,545,704.40x = 2,267,157,374.70 × 528,991,011.55 - Step 4: Simplify right side
1,511,545,704.40x = 1,199,305,872,985,595,392 - Step 5: Solve for x
x = 1,199,305,872,985,595,392/1,511,545,704.40 - Step 6: Final answer
x = 793,430,108.99
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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.