Finding the Fourth Proportional to 991,197,079.80, 1,486,795,619.70 and 532,032,055.80
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Solution
The fourth proportional to 991,197,079.80, 1,486,795,619.70 and 532,032,055.80 is: 798,048,083.70
Step by Step Solution
- Step 1: Write the proportion equation
991,197,079.80 : 1,486,795,619.70 = 532,032,055.80 : x - Step 2: Convert to fraction form
991,197,079.80/1,486,795,619.70 = 532,032,055.80/x - Step 3: Cross multiply
991,197,079.80x = 1,486,795,619.70 × 532,032,055.80 - Step 4: Simplify right side
991,197,079.80x = 791,022,930,103,426,048 - Step 5: Solve for x
x = 791,022,930,103,426,048/991,197,079.80 - Step 6: Final answer
x = 798,048,083.70
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Double scale
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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.