Finding the Fourth Proportional to 9,642,813.74, 13,306,203.42 and 5,721,894.20
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Solution
The fourth proportional to 9,642,813.74, 13,306,203.42 and 5,721,894.20 is: 7,895,692.09
Step by Step Solution
- Step 1: Write the proportion equation
9,642,813.74 : 13,306,203.42 = 5,721,894.20 : x - Step 2: Convert to fraction form
9,642,813.74/13,306,203.42 = 5,721,894.20/x - Step 3: Cross multiply
9,642,813.74x = 13,306,203.42 × 5,721,894.20 - Step 4: Simplify right side
9,642,813.74x = 76,136,688,172,918.17 - Step 5: Solve for x
x = 76,136,688,172,918.17/9,642,813.74 - Step 6: Final answer
x = 7,895,692.09
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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.