Finding the Fourth Proportional to 1,160,961,534, 1,602,126,936.36 and 639,440,766
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Solution
The fourth proportional to 1,160,961,534, 1,602,126,936.36 and 639,440,766 is: 882,428,267.79
Step by Step Solution
- Step 1: Write the proportion equation
1,160,961,534 : 1,602,126,936.36 = 639,440,766 : x - Step 2: Convert to fraction form
1,160,961,534/1,602,126,936.36 = 639,440,766/x - Step 3: Cross multiply
1,160,961,534x = 1,602,126,936.36 × 639,440,766 - Step 4: Simplify right side
1,160,961,534x = 1,024,465,275,415,271,552 - Step 5: Solve for x
x = 1,024,465,275,415,271,552/1,160,961,534 - Step 6: Final answer
x = 882,428,267.79
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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.