Finding the Fourth Proportional to 1,755,054,278.10, 2,632,581,417.15 and 720,657,515.70
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Solution
The fourth proportional to 1,755,054,278.10, 2,632,581,417.15 and 720,657,515.70 is: 1,080,986,273.55
Step by Step Solution
- Step 1: Write the proportion equation
1,755,054,278.10 : 2,632,581,417.15 = 720,657,515.70 : x - Step 2: Convert to fraction form
1,755,054,278.10/2,632,581,417.15 = 720,657,515.70/x - Step 3: Cross multiply
1,755,054,278.10x = 2,632,581,417.15 × 720,657,515.70 - Step 4: Simplify right side
1,755,054,278.10x = 1,897,189,583,961,304,576 - Step 5: Solve for x
x = 1,897,189,583,961,304,576/1,755,054,278.10 - Step 6: Final answer
x = 1,080,986,273.55
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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.