Finding the Fourth Proportional to 282,437,088.10, 389,753,240.61 and 155,276,840.62
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Solution
The fourth proportional to 282,437,088.10, 389,753,240.61 and 155,276,840.62 is: 214,276,574.76
Step by Step Solution
- Step 1: Write the proportion equation
282,437,088.10 : 389,753,240.61 = 155,276,840.62 : x - Step 2: Convert to fraction form
282,437,088.10/389,753,240.61 = 155,276,840.62/x - Step 3: Cross multiply
282,437,088.10x = 389,753,240.61 × 155,276,840.62 - Step 4: Simplify right side
282,437,088.10x = 60,519,651,823,327,488 - Step 5: Solve for x
x = 60,519,651,823,327,488/282,437,088.10 - Step 6: Final answer
x = 214,276,574.76
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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.