Finding the Fourth Proportional to 199,488,525.60, 298,728,903.60 and 130,960,192.80
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Solution
The fourth proportional to 199,488,525.60, 298,728,903.60 and 130,960,192.80 is: 196,109,498.99
Step by Step Solution
- Step 1: Write the proportion equation
199,488,525.60 : 298,728,903.60 = 130,960,192.80 : x - Step 2: Convert to fraction form
199,488,525.60/298,728,903.60 = 130,960,192.80/x - Step 3: Cross multiply
199,488,525.60x = 298,728,903.60 × 130,960,192.80 - Step 4: Simplify right side
199,488,525.60x = 39,121,594,810,388,616 - Step 5: Solve for x
x = 39,121,594,810,388,616/199,488,525.60 - Step 6: Final answer
x = 196,109,498.99
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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.