Finding the Fourth Proportional to 1,180,984,711.80, 1,771,477,067.70 and 874,874,695.80
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Solution
The fourth proportional to 1,180,984,711.80, 1,771,477,067.70 and 874,874,695.80 is: 1,312,312,043.70
Step by Step Solution
- Step 1: Write the proportion equation
1,180,984,711.80 : 1,771,477,067.70 = 874,874,695.80 : x - Step 2: Convert to fraction form
1,180,984,711.80/1,771,477,067.70 = 874,874,695.80/x - Step 3: Cross multiply
1,180,984,711.80x = 1,771,477,067.70 × 874,874,695.80 - Step 4: Simplify right side
1,180,984,711.80x = 1,549,820,460,720,713,472 - Step 5: Solve for x
x = 1,549,820,460,720,713,472/1,180,984,711.80 - Step 6: Final answer
x = 1,312,312,043.70
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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.