Finding the Fourth Proportional to 750,385,147.80, 1,126,585,491.30 and 478,959,202.20
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Solution
The fourth proportional to 750,385,147.80, 1,126,585,491.30 and 478,959,202.20 is: 719,082,047.01
Step by Step Solution
- Step 1: Write the proportion equation
750,385,147.80 : 1,126,585,491.30 = 478,959,202.20 : x - Step 2: Convert to fraction form
750,385,147.80/1,126,585,491.30 = 478,959,202.20/x - Step 3: Cross multiply
750,385,147.80x = 1,126,585,491.30 × 478,959,202.20 - Step 4: Simplify right side
750,385,147.80x = 539,588,488,123,142,976 - Step 5: Solve for x
x = 539,588,488,123,142,976/750,385,147.80 - Step 6: Final answer
x = 719,082,047.01
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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.