Finding the Fourth Proportional to 1,323,446,605.80, 1,985,169,908.70 and 340,871,245.80
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Solution
The fourth proportional to 1,323,446,605.80, 1,985,169,908.70 and 340,871,245.80 is: 511,306,868.70
Step by Step Solution
- Step 1: Write the proportion equation
1,323,446,605.80 : 1,985,169,908.70 = 340,871,245.80 : x - Step 2: Convert to fraction form
1,323,446,605.80/1,985,169,908.70 = 340,871,245.80/x - Step 3: Cross multiply
1,323,446,605.80x = 1,985,169,908.70 × 340,871,245.80 - Step 4: Simplify right side
1,323,446,605.80x = 676,687,339,903,241,344 - Step 5: Solve for x
x = 676,687,339,903,241,344/1,323,446,605.80 - Step 6: Final answer
x = 511,306,868.70
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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.