Finding the Fourth Proportional to 6,551,010,257.80, 9,826,515,386.70 and 2,129,421,137.80
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Solution
The fourth proportional to 6,551,010,257.80, 9,826,515,386.70 and 2,129,421,137.80 is: 3,194,131,706.70
Step by Step Solution
- Step 1: Write the proportion equation
6,551,010,257.80 : 9,826,515,386.70 = 2,129,421,137.80 : x - Step 2: Convert to fraction form
6,551,010,257.80/9,826,515,386.70 = 2,129,421,137.80/x - Step 3: Cross multiply
6,551,010,257.80x = 9,826,515,386.70 × 2,129,421,137.80 - Step 4: Simplify right side
6,551,010,257.80x = 20,924,789,575,355,920,384 - Step 5: Solve for x
x = 20,924,789,575,355,920,384/6,551,010,257.80 - Step 6: Final answer
x = 3,194,131,706.70
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Double scale
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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.