Finding the Fourth Proportional to 1,270,966,899.50, 1,753,889,586.74 and 698,745,785.70
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Solution
The fourth proportional to 1,270,966,899.50, 1,753,889,586.74 and 698,745,785.70 is: 964,244,590.32
Step by Step Solution
- Step 1: Write the proportion equation
1,270,966,899.50 : 1,753,889,586.74 = 698,745,785.70 : x - Step 2: Convert to fraction form
1,270,966,899.50/1,753,889,586.74 = 698,745,785.70/x - Step 3: Cross multiply
1,270,966,899.50x = 1,753,889,586.74 × 698,745,785.70 - Step 4: Simplify right side
1,270,966,899.50x = 1,225,522,957,314,195,968 - Step 5: Solve for x
x = 1,225,522,957,314,195,968/1,270,966,899.50 - Step 6: Final answer
x = 964,244,590.32
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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.