Finding the Fourth Proportional to 808,449,849.70, 1,213,216,461.99 and 283,820,509.98
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Solution
The fourth proportional to 808,449,849.70, 1,213,216,461.99 and 283,820,509.98 is: 425,920,933.85
Step by Step Solution
- Step 1: Write the proportion equation
808,449,849.70 : 1,213,216,461.99 = 283,820,509.98 : x - Step 2: Convert to fraction form
808,449,849.70/1,213,216,461.99 = 283,820,509.98/x - Step 3: Cross multiply
808,449,849.70x = 1,213,216,461.99 × 283,820,509.98 - Step 4: Simplify right side
808,449,849.70x = 344,335,714,958,133,120 - Step 5: Solve for x
x = 344,335,714,958,133,120/808,449,849.70 - Step 6: Final answer
x = 425,920,933.85
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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.