Finding the Fourth Proportional to 1,026,079,186.92, 1,415,951,343 and 556,170,418.80
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Solution
The fourth proportional to 1,026,079,186.92, 1,415,951,343 and 556,170,418.80 is: 767,494,615.89
Step by Step Solution
- Step 1: Write the proportion equation
1,026,079,186.92 : 1,415,951,343 = 556,170,418.80 : x - Step 2: Convert to fraction form
1,026,079,186.92/1,415,951,343 = 556,170,418.80/x - Step 3: Cross multiply
1,026,079,186.92x = 1,415,951,343 × 556,170,418.80 - Step 4: Simplify right side
1,026,079,186.92x = 787,510,251,436,732,416 - Step 5: Solve for x
x = 787,510,251,436,732,416/1,026,079,186.92 - Step 6: Final answer
x = 767,494,615.89
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Double scale
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1.5x scale
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.