Finding the Fourth Proportional to 19,476,613.80, 29,214,920.70 and 18,647,303.40
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Solution
The fourth proportional to 19,476,613.80, 29,214,920.70 and 18,647,303.40 is: 27,970,955.10
Step by Step Solution
- Step 1: Write the proportion equation
19,476,613.80 : 29,214,920.70 = 18,647,303.40 : x - Step 2: Convert to fraction form
19,476,613.80/29,214,920.70 = 18,647,303.40/x - Step 3: Cross multiply
19,476,613.80x = 29,214,920.70 × 18,647,303.40 - Step 4: Simplify right side
19,476,613.80x = 544,779,490,099,840.31 - Step 5: Solve for x
x = 544,779,490,099,840.31/19,476,613.80 - Step 6: Final answer
x = 27,970,955.10
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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.