Finding the Fourth Proportional to 750,821,465.80, 1,126,232,198.70 and 637,447,385.80
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Solution
The fourth proportional to 750,821,465.80, 1,126,232,198.70 and 637,447,385.80 is: 956,171,078.70
Step by Step Solution
- Step 1: Write the proportion equation
750,821,465.80 : 1,126,232,198.70 = 637,447,385.80 : x - Step 2: Convert to fraction form
750,821,465.80/1,126,232,198.70 = 637,447,385.80/x - Step 3: Cross multiply
750,821,465.80x = 1,126,232,198.70 × 637,447,385.80 - Step 4: Simplify right side
750,821,465.80x = 717,913,770,865,101,184 - Step 5: Solve for x
x = 717,913,770,865,101,184/750,821,465.80 - Step 6: Final answer
x = 956,171,078.70
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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.