Finding the Fourth Proportional to 81,941,835.09, 122,912,752.63 and 81,941,835.09
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Solution
The fourth proportional to 81,941,835.09, 122,912,752.63 and 81,941,835.09 is: 122,912,752.63
Step by Step Solution
- Step 1: Write the proportion equation
81,941,835.09 : 122,912,752.63 = 81,941,835.09 : x - Step 2: Convert to fraction form
81,941,835.09/122,912,752.63 = 81,941,835.09/x - Step 3: Cross multiply
81,941,835.09x = 122,912,752.63 × 81,941,835.09 - Step 4: Simplify right side
81,941,835.09x = 10,071,696,506,465,424 - Step 5: Solve for x
x = 10,071,696,506,465,424/81,941,835.09 - Step 6: Final answer
x = 122,912,752.63
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1.5x scale
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.