Finding the Fourth Proportional to 1,053,129,805.14, 1,452,619,349.49 and 677,261,604.18
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Solution
The fourth proportional to 1,053,129,805.14, 1,452,619,349.49 and 677,261,604.18 is: 934,170,988.32
Step by Step Solution
- Step 1: Write the proportion equation
1,053,129,805.14 : 1,452,619,349.49 = 677,261,604.18 : x - Step 2: Convert to fraction form
1,053,129,805.14/1,452,619,349.49 = 677,261,604.18/x - Step 3: Cross multiply
1,053,129,805.14x = 1,452,619,349.49 × 677,261,604.18 - Step 4: Simplify right side
1,053,129,805.14x = 983,803,310,898,505,344 - Step 5: Solve for x
x = 983,803,310,898,505,344/1,053,129,805.14 - Step 6: Final answer
x = 934,170,988.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.