Finding the Fourth Proportional to 709,714,207.80, 1,064,571,311.70 and 709,714,207.80
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Solution
The fourth proportional to 709,714,207.80, 1,064,571,311.70 and 709,714,207.80 is: 1,064,571,311.70
Step by Step Solution
- Step 1: Write the proportion equation
709,714,207.80 : 1,064,571,311.70 = 709,714,207.80 : x - Step 2: Convert to fraction form
709,714,207.80/1,064,571,311.70 = 709,714,207.80/x - Step 3: Cross multiply
709,714,207.80x = 1,064,571,311.70 × 709,714,207.80 - Step 4: Simplify right side
709,714,207.80x = 755,541,385,129,772,416 - Step 5: Solve for x
x = 755,541,385,129,772,416/709,714,207.80 - Step 6: Final answer
x = 1,064,571,311.70
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Double scale
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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.