Finding the Fourth Proportional to 306,617,991.62, 423,130,675.91 and 167,388,753.38
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Solution
The fourth proportional to 306,617,991.62, 423,130,675.91 and 167,388,753.38 is: 230,995,304.56
Step by Step Solution
- Step 1: Write the proportion equation
306,617,991.62 : 423,130,675.91 = 167,388,753.38 : x - Step 2: Convert to fraction form
306,617,991.62/423,130,675.91 = 167,388,753.38/x - Step 3: Cross multiply
306,617,991.62x = 423,130,675.91 × 167,388,753.38 - Step 4: Simplify right side
306,617,991.62x = 70,827,316,357,411,696 - Step 5: Solve for x
x = 70,827,316,357,411,696/306,617,991.62 - Step 6: Final answer
x = 230,995,304.56
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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.