Finding the Fourth Proportional to 7,028,643.71, 9,699,456.62 and 3,931,159.68
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Solution
The fourth proportional to 7,028,643.71, 9,699,456.62 and 3,931,159.68 is: 5,424,960.24
Step by Step Solution
- Step 1: Write the proportion equation
7,028,643.71 : 9,699,456.62 = 3,931,159.68 : x - Step 2: Convert to fraction form
7,028,643.71/9,699,456.62 = 3,931,159.68/x - Step 3: Cross multiply
7,028,643.71x = 9,699,456.62 × 3,931,159.68 - Step 4: Simplify right side
7,028,643.71x = 38,130,112,726,424.32 - Step 5: Solve for x
x = 38,130,112,726,424.32/7,028,643.71 - Step 6: Final answer
x = 5,424,960.24
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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.