Finding the Fourth Proportional to 1,270,966,930.53, 1,753,889,629.58 and 698,745,816.74
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Solution
The fourth proportional to 1,270,966,930.53, 1,753,889,629.58 and 698,745,816.74 is: 964,244,633.15
Step by Step Solution
- Step 1: Write the proportion equation
1,270,966,930.53 : 1,753,889,629.58 = 698,745,816.74 : x - Step 2: Convert to fraction form
1,270,966,930.53/1,753,889,629.58 = 698,745,816.74/x - Step 3: Cross multiply
1,270,966,930.53x = 1,753,889,629.58 × 698,745,816.74 - Step 4: Simplify right side
1,270,966,930.53x = 1,225,523,041,680,430,080 - Step 5: Solve for x
x = 1,225,523,041,680,430,080/1,270,966,930.53 - Step 6: Final answer
x = 964,244,633.15
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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.