Finding the Fourth Proportional to 882,501,138.68, 1,217,983,971.50 and 670,459,038.98
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Solution
The fourth proportional to 882,501,138.68, 1,217,983,971.50 and 670,459,038.98 is: 925,334,061.60
Step by Step Solution
- Step 1: Write the proportion equation
882,501,138.68 : 1,217,983,971.50 = 670,459,038.98 : x - Step 2: Convert to fraction form
882,501,138.68/1,217,983,971.50 = 670,459,038.98/x - Step 3: Cross multiply
882,501,138.68x = 1,217,983,971.50 × 670,459,038.98 - Step 4: Simplify right side
882,501,138.68x = 816,608,363,015,491,456 - Step 5: Solve for x
x = 816,608,363,015,491,456/882,501,138.68 - Step 6: Final answer
x = 925,334,061.60
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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.