Finding the Fourth Proportional to 99,691,839,569.20, 149,537,759,353.80 and 28,946,413,649.20
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Solution
The fourth proportional to 99,691,839,569.20, 149,537,759,353.80 and 28,946,413,649.20 is: 43,419,620,473.80
Step by Step Solution
- Step 1: Write the proportion equation
99,691,839,569.20 : 149,537,759,353.80 = 28,946,413,649.20 : x - Step 2: Convert to fraction form
99,691,839,569.20/149,537,759,353.80 = 28,946,413,649.20/x - Step 3: Cross multiply
99,691,839,569.20x = 149,537,759,353.80 × 28,946,413,649.20 - Step 4: Simplify right side
99,691,839,569.20x = 4,328,581,838,429,620,797,440 - Step 5: Solve for x
x = 4,328,581,838,429,620,797,440/99,691,839,569.20 - Step 6: Final answer
x = 43,419,620,473.80
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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.