Finding the Fourth Proportional to 830,575,644.80, 1,245,863,467.20 and 695,534,518.40
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Solution
The fourth proportional to 830,575,644.80, 1,245,863,467.20 and 695,534,518.40 is: 1,043,301,777.60
Step by Step Solution
- Step 1: Write the proportion equation
830,575,644.80 : 1,245,863,467.20 = 695,534,518.40 : x - Step 2: Convert to fraction form
830,575,644.80/1,245,863,467.20 = 695,534,518.40/x - Step 3: Cross multiply
830,575,644.80x = 1,245,863,467.20 × 695,534,518.40 - Step 4: Simplify right side
830,575,644.80x = 866,541,046,651,106,176 - Step 5: Solve for x
x = 866,541,046,651,106,176/830,575,644.80 - Step 6: Final answer
x = 1,043,301,777.60
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Similar ratio
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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.