Finding the Fourth Proportional to 19,584,081.60, 29,376,122.40 and 18,538,987.20
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Solution
The fourth proportional to 19,584,081.60, 29,376,122.40 and 18,538,987.20 is: 27,808,480.80
Step by Step Solution
- Step 1: Write the proportion equation
19,584,081.60 : 29,376,122.40 = 18,538,987.20 : x - Step 2: Convert to fraction form
19,584,081.60/29,376,122.40 = 18,538,987.20/x - Step 3: Cross multiply
19,584,081.60x = 29,376,122.40 × 18,538,987.20 - Step 4: Simplify right side
19,584,081.60x = 544,603,557,159,233.25 - Step 5: Solve for x
x = 544,603,557,159,233.25/19,584,081.60 - Step 6: Final answer
x = 27,808,480.80
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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.