Finding the Fourth Proportional to 731,496,604.19, 1,009,467,956.61 and 396,969,053.99
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Solution
The fourth proportional to 731,496,604.19, 1,009,467,956.61 and 396,969,053.99 is: 547,818,728.71
Step by Step Solution
- Step 1: Write the proportion equation
731,496,604.19 : 1,009,467,956.61 = 396,969,053.99 : x - Step 2: Convert to fraction form
731,496,604.19/1,009,467,956.61 = 396,969,053.99/x - Step 3: Cross multiply
731,496,604.19x = 1,009,467,956.61 × 396,969,053.99 - Step 4: Simplify right side
731,496,604.19x = 400,727,539,763,642,752 - Step 5: Solve for x
x = 400,727,539,763,642,752/731,496,604.19 - Step 6: Final answer
x = 547,818,728.71
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.