Finding the Fourth Proportional to 1,717,865,655.20, 2,576,126,636.40 and 626,787,101.60
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Solution
The fourth proportional to 1,717,865,655.20, 2,576,126,636.40 and 626,787,101.60 is: 939,935,519.93
Step by Step Solution
- Step 1: Write the proportion equation
1,717,865,655.20 : 2,576,126,636.40 = 626,787,101.60 : x - Step 2: Convert to fraction form
1,717,865,655.20/2,576,126,636.40 = 626,787,101.60/x - Step 3: Cross multiply
1,717,865,655.20x = 2,576,126,636.40 × 626,787,101.60 - Step 4: Simplify right side
1,717,865,655.20x = 1,614,682,947,783,713,280 - Step 5: Solve for x
x = 1,614,682,947,783,713,280/1,717,865,655.20 - Step 6: Final answer
x = 939,935,519.93
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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.