Finding the Fourth Proportional to 291,221,210,402.84, 436,831,815,604.50 and 81,841,959,458.84
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Solution
The fourth proportional to 291,221,210,402.84, 436,831,815,604.50 and 81,841,959,458.84 is: 122,762,939,188.33
Step by Step Solution
- Step 1: Write the proportion equation
291,221,210,402.84 : 436,831,815,604.50 = 81,841,959,458.84 : x - Step 2: Convert to fraction form
291,221,210,402.84/436,831,815,604.50 = 81,841,959,458.84/x - Step 3: Cross multiply
291,221,210,402.84x = 436,831,815,604.50 × 81,841,959,458.84 - Step 4: Simplify right side
291,221,210,402.84x = 35,751,171,743,034,957,103,104 - Step 5: Solve for x
x = 35,751,171,743,034,957,103,104/291,221,210,402.84 - Step 6: Final answer
x = 122,762,939,188.33
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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.