Finding the Fourth Proportional to 1,276,996,204.56, 1,914,574,996.94 and 784,692,346.62
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Solution
The fourth proportional to 1,276,996,204.56, 1,914,574,996.94 and 784,692,346.62 is: 1,176,473,619.70
Step by Step Solution
- Step 1: Write the proportion equation
1,276,996,204.56 : 1,914,574,996.94 = 784,692,346.62 : x - Step 2: Convert to fraction form
1,276,996,204.56/1,914,574,996.94 = 784,692,346.62/x - Step 3: Cross multiply
1,276,996,204.56x = 1,914,574,996.94 × 784,692,346.62 - Step 4: Simplify right side
1,276,996,204.56x = 1,502,352,347,124,904,448 - Step 5: Solve for x
x = 1,502,352,347,124,904,448/1,276,996,204.56 - Step 6: Final answer
x = 1,176,473,619.70
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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.