Finding the Fourth Proportional to 1,174,281,448.40, 1,620,514,805.20 and 691,494,462.44
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Solution
The fourth proportional to 1,174,281,448.40, 1,620,514,805.20 and 691,494,462.44 is: 954,266,130.68
Step by Step Solution
- Step 1: Write the proportion equation
1,174,281,448.40 : 1,620,514,805.20 = 691,494,462.44 : x - Step 2: Convert to fraction form
1,174,281,448.40/1,620,514,805.20 = 691,494,462.44/x - Step 3: Cross multiply
1,174,281,448.40x = 1,620,514,805.20 × 691,494,462.44 - Step 4: Simplify right side
1,174,281,448.40x = 1,120,577,014,098,429,056 - Step 5: Solve for x
x = 1,120,577,014,098,429,056/1,174,281,448.40 - Step 6: Final answer
x = 954,266,130.68
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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.