Finding the Fourth Proportional to 2,278,880,829.20, 3,417,842,940.42 and 642,722,793.68
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Solution
The fourth proportional to 2,278,880,829.20, 3,417,842,940.42 and 642,722,793.68 is: 963,949,292.51
Step by Step Solution
- Step 1: Write the proportion equation
2,278,880,829.20 : 3,417,842,940.42 = 642,722,793.68 : x - Step 2: Convert to fraction form
2,278,880,829.20/3,417,842,940.42 = 642,722,793.68/x - Step 3: Cross multiply
2,278,880,829.20x = 3,417,842,940.42 × 642,722,793.68 - Step 4: Simplify right side
2,278,880,829.20x = 2,196,725,563,026,208,000 - Step 5: Solve for x
x = 2,196,725,563,026,208,000/2,278,880,829.20 - Step 6: Final answer
x = 963,949,292.51
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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.