Finding the Fourth Proportional to 891,761,570.70, 1,337,642,356.05 and 309,302,234.70
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Solution
The fourth proportional to 891,761,570.70, 1,337,642,356.05 and 309,302,234.70 is: 463,953,352.05
Step by Step Solution
- Step 1: Write the proportion equation
891,761,570.70 : 1,337,642,356.05 = 309,302,234.70 : x - Step 2: Convert to fraction form
891,761,570.70/1,337,642,356.05 = 309,302,234.70/x - Step 3: Cross multiply
891,761,570.70x = 1,337,642,356.05 × 309,302,234.70 - Step 4: Simplify right side
891,761,570.70x = 413,735,769,955,638,016 - Step 5: Solve for x
x = 413,735,769,955,638,016/891,761,570.70 - Step 6: Final answer
x = 463,953,352.05
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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.