Finding the Fourth Proportional to 7,668,998,975.30, 11,503,498,462.95 and 3,949,762,280.90
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Solution
The fourth proportional to 7,668,998,975.30, 11,503,498,462.95 and 3,949,762,280.90 is: 5,924,643,421.35
Step by Step Solution
- Step 1: Write the proportion equation
7,668,998,975.30 : 11,503,498,462.95 = 3,949,762,280.90 : x - Step 2: Convert to fraction form
7,668,998,975.30/11,503,498,462.95 = 3,949,762,280.90/x - Step 3: Cross multiply
7,668,998,975.30x = 11,503,498,462.95 × 3,949,762,280.90 - Step 4: Simplify right side
7,668,998,975.30x = 45,436,084,327,351,042,048 - Step 5: Solve for x
x = 45,436,084,327,351,042,048/7,668,998,975.30 - Step 6: Final answer
x = 5,924,643,421.35
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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.