Finding the Fourth Proportional to 9,642,210.67, 13,306,634.51 and 5,291,452.68
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Solution
The fourth proportional to 9,642,210.67, 13,306,634.51 and 5,291,452.68 is: 7,302,415.31
Step by Step Solution
- Step 1: Write the proportion equation
9,642,210.67 : 13,306,634.51 = 5,291,452.68 : x - Step 2: Convert to fraction form
9,642,210.67/13,306,634.51 = 5,291,452.68/x - Step 3: Cross multiply
9,642,210.67x = 13,306,634.51 × 5,291,452.68 - Step 4: Simplify right side
9,642,210.67x = 70,411,426,839,719.98 - Step 5: Solve for x
x = 70,411,426,839,719.98/9,642,210.67 - Step 6: Final answer
x = 7,302,415.31
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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.