Finding the Fourth Proportional to 1,329,698,711.70, 1,994,548,067.55 and 360,350,327.70
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Solution
The fourth proportional to 1,329,698,711.70, 1,994,548,067.55 and 360,350,327.70 is: 540,525,491.55
Step by Step Solution
- Step 1: Write the proportion equation
1,329,698,711.70 : 1,994,548,067.55 = 360,350,327.70 : x - Step 2: Convert to fraction form
1,329,698,711.70/1,994,548,067.55 = 360,350,327.70/x - Step 3: Cross multiply
1,329,698,711.70x = 1,994,548,067.55 × 360,350,327.70 - Step 4: Simplify right side
1,329,698,711.70x = 718,736,049,755,044,224 - Step 5: Solve for x
x = 718,736,049,755,044,224/1,329,698,711.70 - Step 6: Final answer
x = 540,525,491.55
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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.