Finding the Fourth Proportional to 805,130,532.80, 1,207,695,799.20 and 791,525,643.20
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Solution
The fourth proportional to 805,130,532.80, 1,207,695,799.20 and 791,525,643.20 is: 1,187,288,464.80
Step by Step Solution
- Step 1: Write the proportion equation
805,130,532.80 : 1,207,695,799.20 = 791,525,643.20 : x - Step 2: Convert to fraction form
805,130,532.80/1,207,695,799.20 = 791,525,643.20/x - Step 3: Cross multiply
805,130,532.80x = 1,207,695,799.20 × 791,525,643.20 - Step 4: Simplify right side
805,130,532.80x = 955,922,194,251,718,144 - Step 5: Solve for x
x = 955,922,194,251,718,144/805,130,532.80 - Step 6: Final answer
x = 1,187,288,464.80
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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.