Finding the Fourth Proportional to 3,220,555,114.80, 4,830,294,538.80 and 891,727,508.70
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Solution
The fourth proportional to 3,220,555,114.80, 4,830,294,538.80 and 891,727,508.70 is: 1,337,442,261.30
Step by Step Solution
- Step 1: Write the proportion equation
3,220,555,114.80 : 4,830,294,538.80 = 891,727,508.70 : x - Step 2: Convert to fraction form
3,220,555,114.80/4,830,294,538.80 = 891,727,508.70/x - Step 3: Cross multiply
3,220,555,114.80x = 4,830,294,538.80 × 891,727,508.70 - Step 4: Simplify right side
3,220,555,114.80x = 4,307,306,515,371,339,776 - Step 5: Solve for x
x = 4,307,306,515,371,339,776/3,220,555,114.80 - Step 6: Final answer
x = 1,337,442,261.30
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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.