Finding the Fourth Proportional to 7,138,975.08, 9,842,270.42 and 5,673,776.21
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Solution
The fourth proportional to 7,138,975.08, 9,842,270.42 and 5,673,776.21 is: 7,822,248.86
Step by Step Solution
- Step 1: Write the proportion equation
7,138,975.08 : 9,842,270.42 = 5,673,776.21 : x - Step 2: Convert to fraction form
7,138,975.08/9,842,270.42 = 5,673,776.21/x - Step 3: Cross multiply
7,138,975.08x = 9,842,270.42 × 5,673,776.21 - Step 4: Simplify right side
7,138,975.08x = 55,842,839,683,802.47 - Step 5: Solve for x
x = 55,842,839,683,802.47/7,138,975.08 - Step 6: Final answer
x = 7,822,248.86
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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.