Finding the Fourth Proportional to 199,640,552.80, 299,460,829.20 and 191,704,367.20
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Solution
The fourth proportional to 199,640,552.80, 299,460,829.20 and 191,704,367.20 is: 287,556,550.80
Step by Step Solution
- Step 1: Write the proportion equation
199,640,552.80 : 299,460,829.20 = 191,704,367.20 : x - Step 2: Convert to fraction form
199,640,552.80/299,460,829.20 = 191,704,367.20/x - Step 3: Cross multiply
199,640,552.80x = 299,460,829.20 × 191,704,367.20 - Step 4: Simplify right side
199,640,552.80x = 57,407,948,762,973,280 - Step 5: Solve for x
x = 57,407,948,762,973,280/199,640,552.80 - Step 6: Final answer
x = 287,556,550.80
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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.