Finding the Fourth Proportional to 839,815,225.80, 1,259,722,838.70 and 801,551,473.80
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Solution
The fourth proportional to 839,815,225.80, 1,259,722,838.70 and 801,551,473.80 is: 1,202,327,210.70
Step by Step Solution
- Step 1: Write the proportion equation
839,815,225.80 : 1,259,722,838.70 = 801,551,473.80 : x - Step 2: Convert to fraction form
839,815,225.80/1,259,722,838.70 = 801,551,473.80/x - Step 3: Cross multiply
839,815,225.80x = 1,259,722,838.70 × 801,551,473.80 - Step 4: Simplify right side
839,815,225.80x = 1,009,732,697,939,504,640 - Step 5: Solve for x
x = 1,009,732,697,939,504,640/839,815,225.80 - Step 6: Final answer
x = 1,202,327,210.70
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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.