Finding the Fourth Proportional to 1,270,966,917.70, 1,753,889,612.07 and 698,745,804.04
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Solution
The fourth proportional to 1,270,966,917.70, 1,753,889,612.07 and 698,745,804.04 is: 964,244,615.75
Step by Step Solution
- Step 1: Write the proportion equation
1,270,966,917.70 : 1,753,889,612.07 = 698,745,804.04 : x - Step 2: Convert to fraction form
1,270,966,917.70/1,753,889,612.07 = 698,745,804.04/x - Step 3: Cross multiply
1,270,966,917.70x = 1,753,889,612.07 × 698,745,804.04 - Step 4: Simplify right side
1,270,966,917.70x = 1,225,523,007,183,255,808 - Step 5: Solve for x
x = 1,225,523,007,183,255,808/1,270,966,917.70 - Step 6: Final answer
x = 964,244,615.75
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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.