Finding the Fourth Proportional to 19,658,977.20, 29,488,465.80 and 16,299,745.20
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Solution
The fourth proportional to 19,658,977.20, 29,488,465.80 and 16,299,745.20 is: 24,449,617.80
Step by Step Solution
- Step 1: Write the proportion equation
19,658,977.20 : 29,488,465.80 = 16,299,745.20 : x - Step 2: Convert to fraction form
19,658,977.20/29,488,465.80 = 16,299,745.20/x - Step 3: Cross multiply
19,658,977.20x = 29,488,465.80 × 16,299,745.20 - Step 4: Simplify right side
19,658,977.20x = 480,654,478,878,914.12 - Step 5: Solve for x
x = 480,654,478,878,914.12/19,658,977.20 - Step 6: Final answer
x = 24,449,617.80
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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.