Finding the Fourth Proportional to 1,156,370,935,827.20, 1,595,830,161,869.70 and 635,544,815,121.40
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Solution
The fourth proportional to 1,156,370,935,827.20, 1,595,830,161,869.70 and 635,544,815,121.40 is: 877,072,878,405.68
Step by Step Solution
- Step 1: Write the proportion equation
1,156,370,935,827.20 : 1,595,830,161,869.70 = 635,544,815,121.40 : x - Step 2: Convert to fraction form
1,156,370,935,827.20/1,595,830,161,869.70 = 635,544,815,121.40/x - Step 3: Cross multiply
1,156,370,935,827.20x = 1,595,830,161,869.70 × 635,544,815,121.40 - Step 4: Simplify right side
1,156,370,935,827.20x = 1,014,221,585,190,632,380,432,384 - Step 5: Solve for x
x = 1,014,221,585,190,632,380,432,384/1,156,370,935,827.20 - Step 6: Final answer
x = 877,072,878,405.68
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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.