Finding the Fourth Proportional to 77,186,949.84, 115,782,982.20 and 38,827,561.68
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Solution
The fourth proportional to 77,186,949.84, 115,782,982.20 and 38,827,561.68 is: 58,242,629.00
Step by Step Solution
- Step 1: Write the proportion equation
77,186,949.84 : 115,782,982.20 = 38,827,561.68 : x - Step 2: Convert to fraction form
77,186,949.84/115,782,982.20 = 38,827,561.68/x - Step 3: Cross multiply
77,186,949.84x = 115,782,982.20 × 38,827,561.68 - Step 4: Simplify right side
77,186,949.84x = 4,495,570,882,864,842 - Step 5: Solve for x
x = 4,495,570,882,864,842/77,186,949.84 - Step 6: Final answer
x = 58,242,629.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.