Finding the Fourth Proportional to 5,179,394,423.20, 7,769,091,634.80 and 4,580,779,280.80
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Solution
The fourth proportional to 5,179,394,423.20, 7,769,091,634.80 and 4,580,779,280.80 is: 6,871,168,921.20
Step by Step Solution
- Step 1: Write the proportion equation
5,179,394,423.20 : 7,769,091,634.80 = 4,580,779,280.80 : x - Step 2: Convert to fraction form
5,179,394,423.20/7,769,091,634.80 = 4,580,779,280.80/x - Step 3: Cross multiply
5,179,394,423.20x = 7,769,091,634.80 × 4,580,779,280.80 - Step 4: Simplify right side
5,179,394,423.20x = 35,588,493,991,328,444,416 - Step 5: Solve for x
x = 35,588,493,991,328,444,416/5,179,394,423.20 - Step 6: Final answer
x = 6,871,168,921.20
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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.