Finding the Fourth Proportional to 1,609,488,586.80, 2,414,232,880.20 and 872,911,360.80
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Solution
The fourth proportional to 1,609,488,586.80, 2,414,232,880.20 and 872,911,360.80 is: 1,309,367,041.20
Step by Step Solution
- Step 1: Write the proportion equation
1,609,488,586.80 : 2,414,232,880.20 = 872,911,360.80 : x - Step 2: Convert to fraction form
1,609,488,586.80/2,414,232,880.20 = 872,911,360.80/x - Step 3: Cross multiply
1,609,488,586.80x = 2,414,232,880.20 × 872,911,360.80 - Step 4: Simplify right side
1,609,488,586.80x = 2,107,411,308,743,485,184 - Step 5: Solve for x
x = 2,107,411,308,743,485,184/1,609,488,586.80 - Step 6: Final answer
x = 1,309,367,041.20
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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.