Finding the Fourth Proportional to 81,693,927,847.80, 122,289,559,291.44 and 53,302,726,283.40
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Solution
The fourth proportional to 81,693,927,847.80, 122,289,559,291.44 and 53,302,726,283.40 is: 79,790,102,862.64
Step by Step Solution
- Step 1: Write the proportion equation
81,693,927,847.80 : 122,289,559,291.44 = 53,302,726,283.40 : x - Step 2: Convert to fraction form
81,693,927,847.80/122,289,559,291.44 = 53,302,726,283.40/x - Step 3: Cross multiply
81,693,927,847.80x = 122,289,559,291.44 × 53,302,726,283.40 - Step 4: Simplify right side
81,693,927,847.80x = 6,518,366,906,229,241,937,920 - Step 5: Solve for x
x = 6,518,366,906,229,241,937,920/81,693,927,847.80 - Step 6: Final answer
x = 79,790,102,862.64
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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.