Finding the Fourth Proportional to 1,386,836,501.36, 2,080,969,955.86 and 649,981,265.28
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Solution
The fourth proportional to 1,386,836,501.36, 2,080,969,955.86 and 649,981,265.28 is: 975,307,098.99
Step by Step Solution
- Step 1: Write the proportion equation
1,386,836,501.36 : 2,080,969,955.86 = 649,981,265.28 : x - Step 2: Convert to fraction form
1,386,836,501.36/2,080,969,955.86 = 649,981,265.28/x - Step 3: Cross multiply
1,386,836,501.36x = 2,080,969,955.86 × 649,981,265.28 - Step 4: Simplify right side
1,386,836,501.36x = 1,352,591,484,919,548,416 - Step 5: Solve for x
x = 1,352,591,484,919,548,416/1,386,836,501.36 - Step 6: Final answer
x = 975,307,098.99
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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.