Finding the Fourth Proportional to 71,007,189.23, 97,988,968.55 and 39,645,719.93
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Solution
The fourth proportional to 71,007,189.23, 97,988,968.55 and 39,645,719.93 is: 54,710,561.64
Step by Step Solution
- Step 1: Write the proportion equation
71,007,189.23 : 97,988,968.55 = 39,645,719.93 : x - Step 2: Convert to fraction form
71,007,189.23/97,988,968.55 = 39,645,719.93/x - Step 3: Cross multiply
71,007,189.23x = 97,988,968.55 × 39,645,719.93 - Step 4: Simplify right side
71,007,189.23x = 3,884,843,203,706,964.50 - Step 5: Solve for x
x = 3,884,843,203,706,964.50/71,007,189.23 - Step 6: Final answer
x = 54,710,561.64
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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.