Finding the Fourth Proportional to 839,232,259.70, 1,258,848,389.55 and 823,107,946.10
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Solution
The fourth proportional to 839,232,259.70, 1,258,848,389.55 and 823,107,946.10 is: 1,234,661,919.15
Step by Step Solution
- Step 1: Write the proportion equation
839,232,259.70 : 1,258,848,389.55 = 823,107,946.10 : x - Step 2: Convert to fraction form
839,232,259.70/1,258,848,389.55 = 823,107,946.10/x - Step 3: Cross multiply
839,232,259.70x = 1,258,848,389.55 × 823,107,946.10 - Step 4: Simplify right side
839,232,259.70x = 1,036,168,112,373,793,152 - Step 5: Solve for x
x = 1,036,168,112,373,793,152/839,232,259.70 - Step 6: Final answer
x = 1,234,661,919.15
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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.